Fix missing files in Copy Extras Build Phrases

CBLJSONValidator.m (Source)
CBLIncrementalStore.h (Source/API/Extras)
CBLIncrementalStore.m (Source/API/Extras)

Merge pull request couchbase#688 from couchbase/feature/issue_687_sch…

…ema_version

Open db in READWRITE mode when querying the schema version

Another attempt to fix build error with MYAnonymousIdentity

Unit tests: make certain databases are closed at end of each test

Leaving a db open between tests can cause problems if it's reopened by
another test and already has things like docs or validations in it.

Conflicts:
	Source/CBLReplicator_Tests.m

Fixed: Database-change notifications weren’t delivered on dispatch qu…

…eues

If the CBLManager.dispatchQueue property is set, kCBLDatabaseChangeNotification notifications weren’t
being delivered. This in turn was causing CBLLiveQuery instances not to re-run the query and update.
Fixes couchbase#364 (again!)

1.0.0 release