Merge pull request #59 from alvarog/master

CRAFTERCMS-435: Error management improvement
Adds README
Add 'Usage', 'Adding Data' and 'Bundle Installation' instructions
reafactoring popover-message directive
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
CRAFTERCMS-468: Added action filters support for the harvester and the email notifier
Merge pull request #62 from quiaro/master

Documentation + bug fixes for CRAFTERCMS-465
Merge pull request #63 from juanavila/master

CRAFTERCMS-468: Added action filters support for the harvester and the email notifier
CRAFTERCMS-476, CRAFTERCMS-432 : Added count by moderation status and improvement to harvester daemon