Warning: SMOB bugfix

cc-ed on sioc-dev

If some of you are using SMOB publishing / aggregating tools [1],
please consider reading this.
The current prototype used sioc:MicroBlogPost class, while its URI in
SIOC spec is sioc:MicroblogPost.
I fixed it in SVN, but if you update some client or server now, it
won’t work with old data.
A patch to replace old URIs to new ones in existing applications will
be available soon.
But if you start developing code or implementing a server now, please
checkout the new svn code.

Sorry for any inconvenience !

Alex.

[1] http://smob.googlecode.com