Update to 2.3.2
Add library imports.

The OAuth library was compiled by me, code from
http://code.google.com/p/oauth/ rev 1270, java core.

b2context obtained from http://www.spvsoftwareproducts.com/bb/b2context/
version 1.2.00

Rest of the jars were provided by the Eclipse Building Block plugin.
Inherit same license as parent project.
Compilation fixes for OAuth.

Since the OAuth library I compiled seems to be a different version than
what the exisiting code was designed with, had to update validateMessage
invocation to work with this version.

Also stopped using BbList, as it is deprecated and the built in
java.util.List works fine.
Fix net-oauth.jar location.

Looks like net-oauth.jar needs to be in WEB-INF/lib probably cause some
JSP file depends on it? Otherwise, it complains that it can't find
OAuthValidator when I try any of the services.