Merge pull request #1 from Gluewine/master

merge
Add support for javax.servlet.Filter
Merge pull request #16 from gevaerts/fixes

Fix logic error in FirstInChain handling.
Your fix is correct. The current thread may only be registered if not already registered, and if the invoker is not a ContextInitializer (which translates to ci==null)
Merge pull request #15 from gevaerts/filter_support

I don't think we need to be able to change the pathspec, but we need to be able to allow a filter to specify a pathspec so that a filter can be restricted.

Maybe a GluewineFilter that extends Filter, and has a getPath() method? (The same way there is a GluewineServlet).
Merge pull request #17 from sergeds/master

Merge pull request #1 from Gluewine/master
Use the merged object after merge() to avoid issues with detached objects
Remove gxo_sessions bundle/package. Everything it did was already done by GxoServerImpl too.
Remove MethodInvocationChecker, and introduce RemoteCallValidator.

MethodInvocationChecker was gxo-specific, while support for
RemoteCallValidator can be implemented by any RPC mechanism.