Update support forum URL.

Settling on Google Groups for the official support forum.

-/php/admin.php

@@ -502,7 +502,7 @@ public function plugin_row_meta( $meta, $file, $data ) {
 	public function plugin_action_links( $actions, $file, $data, $context ) {
 		if ( 'Webcomic' === $data[ 'Name' ] ) {
 			$actions[ 'settings' ] = sprintf( '<a href="%s">%s</a>', esc_url( add_query_arg( array( 'page' => 'webcomic' ), admin_url( 'options-general.php' ) ) ), __( 'Settings', 'webcomic' ) );
-			$actions[ 'support' ]  = sprintf( '<a href="http://webcomic.nu/support" target="_blank">%s</a>', __( 'Support', 'webcomic' ) );
+			$actions[ 'support' ]  = sprintf( '<a href="//groups.google.com/d/forum/webcomicnu" target="_blank">%s</a>', __( 'Support', 'webcomic' ) );
 		}
 
 		return $actions;

-/php/help.php

@@ -316,7 +316,7 @@ private function sidebar() {
 			<p><strong>%s</strong></p>
 			<p><a href="//github.com/mgsisk/webcomic/wiki" target="_blank">%s</a></p>
 			<p><a href="//vimeo.com/channels/webcomic" target="_blank">%s</a></p>
-			<p><a href="http://webcomic.nu/support" target="_blank">%s</a></p>
+			<p><a href="//groups.google.com/d/forum/webcomicnu" target="_blank">%s</a></p>
 			<p><a href="//github.com/mgsisk/webcomic/issues" target="_blank">%s</a></p>
 			<hr>
 			<p><a href="support@webcomic.nu">%s</a></p>',

readme.md

@@ -41,7 +41,7 @@ Once installed and activated you can use Webcomic in one of three ways:
 
 - [Beginner's Guide](//github.com/mgsisk/webcomic/wiki)
 - [Video Tutorials](//vimeo.com/channels/webcomic)
-- [Support Forum](http://webcomic.nu/support)
+- [Support Forum](//groups.google.com/d/forum/webcomicnu)
 - [Issue Tracker](//github.com/mgsisk/webcomic/issues)
 - [Email Support](mailto:support@webcomic.nu)
 

readme.txt

@@ -55,7 +55,7 @@ Once installed and activated you can use Webcomic in one of three ways:
 
 - [Beginner's Guide](//github.com/mgsisk/webcomic/wiki)
 - [Video Tutorials](//vimeo.com/channels/webcomic)
-- [Support Forum](http://webcomic.nu/support)
+- [Support Forum](//groups.google.com/d/forum/webcomicnu)
 - [Issue Tracker](//github.com/mgsisk/webcomic/issues)
 - [Email Support](mailto:support@webcomic.nu)