[COOK-2608] - update couchdb source version to 1.2.1
[COOK-1629] - inform configure about erlang include dir
initial test kitchen 1.0 alpha support
Fix building from source in test kitchen

Add build-essential cookbook to berkshelf and kitchen.yml so build
tools are available. This isn't a dependency of the cookbook in
metadata because the source recipe is optional and package
installation is generally recommended where available.

Remove the compile flags for Ubuntu as the defaults now work for
CouchDB 1.2.1.

Use libmozjs-dev (virtual package) on all Ubuntu versions but 10.04.
Merge branch 'tk-1.0-alpha'
release v2.4.0