* Added: Option to automatically exclude common backup locations from Backups
* Added: Option to automatically exclude common cache locations from Backups
* Added: Option to automatically exclude non-WordPress folders from Backups
* Added: Option to automatically exclude Zip Archives from Backups
* Added: Several new subtasks to increase performance and reduce timeouts on Backups
* Added: New Hooks for Extensions
* Fixed: Backups allowing special characters that caused backups to fail
* Fixed: Text on Backup popup 
* Fixed: Issue in how categories tree displayed
* Fixed: Exclude folders and categories duplicated in select list when selecting child sites fast
* Fixed: Error on first install that occurred on some Dashboards
* Fixed: Issue where the upper sync button did not activate when there are posts/pages with html tags in title
* Additional CSS and Cosmetic Tweaks

git-svn-id: https://plugins.svn.wordpress.org/mainwp/trunk@962638 b8457f37-d9ea-0310-8a92-e5e31aec5664