Release 2.0.0-beta4

Continueing to have issues with npm.  This should
be the final fix.  This beta represents the version
directly following our initial beta.

Change-Id: I32e750e9232a4863421cfcd0ba17e0cd8cb8678b
Reviewed-on: http://review.couchbase.org/41448
Reviewed-by: Matt Ingenthron <matt@couchbase.com>
Tested-by: Brett Lawson <brett19@gmail.com>
JSCBC-128: Added support for performing view queries against the mock.

As a prerequisit of this, document mangement APIs were also
added to allow the creation of design documents to query.

Change-Id: Ic1ea022ab6c4166b9a86245bd98d529745e65e2d
Release 2.0.0

Change-Id: Id9ee295aa6c2e3a07337d773b38892755917f23d