(#754) - Adding 'group' and 'group_level' support for CouchDB

Adding the possibility to add a 'group' or 'group_level' option when
querying a CouchDB, so reduced results will group correctly.

Corrected missing '+'
(#706) - fix limit implementation in api.changes

* limit action should be done after deduplication and
filter aplication
* this implementation could be much less performant as
we don't limit the result set (but how can we improve it?)
(#378) - Fixed IE delay when delete database
(#753) - Add jenkins deploy script
(#715) fixes #715 by documenting continious replication
(#761) - Web SQL not retrieving id when reopened
(#768) - Add levelDown dependancy
(#765) Pouchdb checks if view exists if not returns missing_named_view error
Merge pull request #1 from daleharvey/master

Syncing to original