updated to v1.0.1 - made image button work, some code refactoring

git-svn-id: https://plugins.svn.wordpress.org/wp-content-blocks/trunk@757299 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated the version number in main plugin file to match actual version number

git-svn-id: https://plugins.svn.wordpress.org/wp-content-blocks/trunk@757301 b8457f37-d9ea-0310-8a92-e5e31aec5664