Adds README
Add 'Usage', 'Adding Data' and 'Bundle Installation' instructions
Merge remote-tracking branch 'upstream/master'
Adds 'isBulk' config setting thus removing 'Edit' from bulk options
Sets the active tab to moderation.value instead of moderation.label

ugc_list.html uses ugc.moderation.value in the tab's url (href value)
so this value should also be used when identifying the active tab
Merge pull request #62 from quiaro/master

Documentation + bug fixes for CRAFTERCMS-465