diff --git a/readme.txt b/readme.txt
index 4b4ae5d..651346f 100644
--- a/readme.txt
+++ b/readme.txt
@@ -81,6 +81,7 @@ and **at least one** of the following for storage backend:
 = 1.0 =
 *in RC state*
 
+* plugin development using [GitHub repository](https://github.com/petermolnar/wp-ffpc "GitHub repository") from this version; WordPress SVN only for releases
 * Software licence change from GPLv2 to GPLv3
 * backend code completely replaced ( object-based backend, improved readability & better structure, lot less global vars, etc. )
 * added proper uninstall ( uninstall hook was not removing options from DB, uninstall.php will )
diff --git a/wp-ffpc-abstract.php b/wp-ffpc-abstract.php
index b615918..2c58953 100644
--- a/wp-ffpc-abstract.php
+++ b/wp-ffpc-abstract.php
@@ -44,6 +44,11 @@ if (!class_exists('WP_Plugins_Abstract')) {
 	 */
 	abstract class WP_Plugins_Abstract {
 
+		const slug_save = '&saved=true';
+		const slug_delete = '&deleted=true';
+		const broadcast_url = 'http://petermolnar.eu/broadcast/';
+		const donation_business_id = 'FA3NT7XDVHPWU';
+
 		protected $plugin_constant;
 		protected $options = array();
 		protected $defaults = array();
@@ -60,11 +65,7 @@ if (!class_exists('WP_Plugins_Abstract')) {
 		protected $donation_link;
 		protected $button_save;
 		protected $button_delete;
-		public $capability = 10;
-		const slug_save = '&saved=true';
-		const slug_delete = '&deleted=true';
-		const broadcast_url = 'http://petermolnar.eu/broadcast/';
-		const donation_business_id = 'FA3NT7XDVHPWU';
+		protected $capability = 10;
 		protected $donation_business_name;
 		protected $donation_item_name;
 		protected $broadcast_message;
@@ -181,14 +182,13 @@ if (!class_exists('WP_Plugins_Abstract')) {
 		 */
 		abstract function plugin_setup();
 
-
 		/**
 		 * admin panel, the HTML usually
 		 */
 		abstract function plugin_admin_panel();
 
 		/**
-		 * admin init: save/delete setting, add admin panel call hook
+		 * admin init called by WordPress add_action, needs to be public
 		 */
 		public function plugin_admin_init() {
 
@@ -283,15 +283,15 @@ if (!class_exists('WP_Plugins_Abstract')) {
 		}
 
 		/**
-		 * hook to add functionality into plugin_options_read
-		 */
-		abstract function plugin_hook_options_read ( &$options );
-
-		/**
-		 * hook for parameter migration
+		 * hook for parameter migration, runs right after options read from DB
 		 */
 		abstract function plugin_hook_options_migrate( &$options );
 
+		/**
+		 * hook to add functionality into plugin_options_read, runs after defaults check
+		 */
+		abstract function plugin_hook_options_read ( &$options );
+
 		/**
 		 * used on update and to save current options to database
 		 *
@@ -482,8 +482,10 @@ if (!class_exists('WP_Plugins_Abstract')) {
 				return $opt;
 		}
 
-
-
+		/**
+		 * creates PayPal donation form based on plugin details & hardcoded business ID
+		 *
+		 */
 		protected function plugin_donation_form () {
 
 			?>
@@ -504,7 +506,6 @@ if (!class_exists('WP_Plugins_Abstract')) {
 							slider.slider( "value", this.selectedIndex + 1 );
 						});
 					});
-
 				});
 			</script>
 
diff --git a/wp-ffpc-acache.php b/wp-ffpc-acache.php
index bcc3a4d..cd2f6d2 100644
--- a/wp-ffpc-acache.php
+++ b/wp-ffpc-acache.php
@@ -76,13 +76,11 @@ $wp_ffpc_values = array();
 foreach ( $wp_ffpc_keys as $key ) {
 	$value = $wp_ffpc_backend->get ( $wp_ffpc_backend->key ( $key ) );
 
-	if ( ! $value )
-	{
+	if ( ! $value ) {
 		wp_ffpc_start();
 		return;
 	}
-	else
-	{
+	else {
 		$wp_ffpc_values[ $key ] = $value;
 	}
 }
@@ -230,14 +228,12 @@ function wp_ffpc_callback( $buffer ) {
 		if made with archieve, last listed post can make this go bad
 	*/
 	global $post;
-	if ( !empty($post) && ( $meta['type'] == 'single' || $meta['type'] == 'page' ) && !empty ( $post->post_modified_gmt ) )
-	{
+	if ( !empty($post) && ( $meta['type'] == 'single' || $meta['type'] == 'page' ) && !empty ( $post->post_modified_gmt ) ) {
 		/* get last modification data */
 		$meta['lastmodified'] = strtotime ( $post->post_modified_gmt );
 
 		/* get shortlink, if possible */
-		if (function_exists('wp_get_shortlink'))
-		{
+		if (function_exists('wp_get_shortlink')) {
 			$shortlink = wp_get_shortlink( );
 			if (!empty ( $shortlink ) )
 				$meta['shortlink'] = $shortlink;
@@ -254,13 +250,11 @@ function wp_ffpc_callback( $buffer ) {
 		if ( isset( $_SERVER['HTTP_X_FORWARDED_PROTO'] ) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https' )
 			$_SERVER['HTTPS'] = 'on';
 
-		if ( isset($_SERVER['HTTPS']) && ( ( strtolower($_SERVER['HTTPS']) == 'on' )  || ( $_SERVER['HTTPS'] == '1' ) ) )
-		{
+		if ( isset($_SERVER['HTTPS']) && ( ( strtolower($_SERVER['HTTPS']) == 'on' )  || ( $_SERVER['HTTPS'] == '1' ) ) ) {
 			$sync_from = 'http://' . $_SERVER['SERVER_NAME'];
 			$sync_to = 'https://' . $_SERVER['SERVER_NAME'];
 		}
-		else
-		{
+		else {
 			$sync_from = 'https://' . $_SERVER['SERVER_NAME'];
 			$sync_to = 'http://' . $_SERVER['SERVER_NAME'];
 		}
diff --git a/wp-ffpc-admin.css b/wp-ffpc-admin.css
index 08ee5a5..6ebafcb 100644
--- a/wp-ffpc-admin.css
+++ b/wp-ffpc-admin.css
@@ -120,7 +120,7 @@
 	background: #f1f1f1;
 }
 
-.ui-slider .ui-slider-handle {
+.wp-ffpc-donation .ui-slider .ui-slider-handle {
 	position: absolute;
 	z-index: 2;
 	width: 1.2em;
@@ -137,5 +137,4 @@
 	background-image: -o-linear-gradient(bottom,#ececec,#f9f9f9);
 	background-image: linear-gradient(to top,#ececec,#f9f9f9);
 	outline: none;
-
 }
diff --git a/wp-ffpc-backend.php b/wp-ffpc-backend.php
index d84c3b7..dc3e684 100644
--- a/wp-ffpc-backend.php
+++ b/wp-ffpc-backend.php
@@ -36,12 +36,12 @@ if (!class_exists('WP_FFPC_Backend')) {
 		const prefix = 'prefix-';
 		const host_separator  = ',';
 		const port_separator  = ':';
-		private $key_prefixes = array ( 'meta', 'data' );
 
+		private $key_prefixes = array ( 'meta', 'data' );
 		private $connection = NULL;
 		private $options;
 		private $alive = false;
-		public $status;
+		private $status;
 
 		/**
 		* constructor
@@ -192,11 +192,13 @@ if (!class_exists('WP_FFPC_Backend')) {
 			else
 				$protocol = 'http://';
 
+			/* elements to clear */
 			$to_clear = array (
 				$this->options['prefix-meta'] . $protocol . $path,
 				$this->options['prefix-data'] . $protocol . $path,
 			);
 
+			/* delete entries */
 			$internal = $this->proxy ( 'clear' );
 			$this->$internal ( $to_clear );
 		}
@@ -299,7 +301,7 @@ if (!class_exists('WP_FFPC_Backend')) {
 					if ( function_exists( 'syslog' ) )
 						syslog( $log_level , self::plugin_constant . " with " . $this->options['cache_type'] . ' ' . $message );
 					/* error level is real problem, needs to be displayed on the admin panel */
-					throw new Exception ( $message );
+					//throw new Exception ( $message );
 				break;
 				default:
 					if ( function_exists( 'syslog' ) && $this->options['debug'] )
@@ -423,7 +425,7 @@ if (!class_exists('WP_FFPC_Backend')) {
 
 				/* use binary and not compressed format, good for nginx and still fast */
 				$this->connection->setOption( Memcached::OPT_COMPRESSION , false );
-				//$this->connection->setOption( Memcached::OPT_BINARY_PROTOCOL , true );
+				$this->connection->setOption( Memcached::OPT_BINARY_PROTOCOL , true );
 			}
 
 			/* check if initialization was success or not */
@@ -652,12 +654,10 @@ if (!class_exists('WP_FFPC_Backend')) {
 			foreach ( $keys as $key ) {
 				$kresult = $this->connection->delete( $key );
 
-				if ( $kresult === false )
-				{
+				if ( $kresult === false ) {
 					$this->log ( __translate__('unable to delete entry ', self::plugin_constant ) . $key );
 				}
-				else
-				{
+				else {
 					$this->log ( __translate__( 'entry deleted: ', self::plugin_constant ) . $key );
 				}
 			}
diff --git a/wp-ffpc-class.php b/wp-ffpc-class.php
index 7c0f758..f4e29d5 100644
--- a/wp-ffpc-class.php
+++ b/wp-ffpc-class.php
@@ -511,7 +511,7 @@ if ( ! class_exists( 'WP_FFPC' ) ) {
 
 			/* create advanced cache file, needed only once or on activation, because there could be lefover advanced-cache.php from different plugins */
 			if (  !$activating )
-				$this->deploy_acache();
+				$this->deploy_advanced_cache();
 
 		}
 
@@ -574,7 +574,7 @@ if ( ! class_exists( 'WP_FFPC' ) ) {
 		 * advanced-cache.php creator function
 		 *
 		 */
-		private function deploy_acache( ) {
+		private function deploy_advanced_cache( ) {
 
 			/* in case advanced-cache.php was already there, remove it */
 			if ( @file_exists( $this->acache ))
@@ -651,7 +651,7 @@ if ( ! class_exists( 'WP_FFPC' ) ) {
 			}
 
 			/* deploy advanced-cache.php */
-			$this->deploy_acache ();
+			$this->deploy_advanced_cache ();
 
 			/* save options to database */
 			update_site_option( $this->global_option , $this->global_config );