update issue 528

add a version number to response if you call /bigbluebutton/api with no parameters.
this does not require a checksum since the checksum generation differs between certain versions

we still need to change the build process to update the version in bigbluebutton.properties for each built version
i'll leave this part to Fred.  I'd suggest using the following versioning process:
0.7-SNAPSHOT - for builds between releases
0.7-final - for release build versions

Owner: ffdixon
Status: Started



git-svn-id: http://bigbluebutton.googlecode.com/svn/trunk@4322 af16638f-c34d-0410-8cfa-b39d5352b314