Uses withRights option recursively
Allows to fix rights when copying resource
Calls addChild method when copying a resource
Adds comments
User csv/excel export.
Merge pull request #925 from ngodfraind/master

User csv/excel export.
Merge pull request #924 from kitan1982/resource-node-copy-bugfix

Resource node copy bugfix
Updating and adding method to oauth process (used by ktbs for now)
Merge pull request #926 from maxailloud/oauth_connection_ktbs

Updating and adding method to oauth process