#000 - Upgrade joda-time.

jruby-1.7.11 includes joda-time 2.3 (see dependencies section
here: http://maven-repository.com/artifact/org.jruby/jruby-core/1.7.11). Go
was using joda-time 1.6. There is an incompatibility in constructors between
these versions, and some oauth code in token.rb#before_create failed, since
it picked up the older joda-time class.
#000 - Fix another oauth_client_id => client_id issue.

In new engine, it is client_id.
#000 - Add clientId related methods.

getClientId() and setClientId() are called through Rails reflection,
from model_base.rb. Earlier, since the column name was oauth_client_id,
it used to call getOAuthClientId() instead.