- implemented SSE in the StandardAsyncServlet
- add support for style bindings to Errai UI
- significant cleanup to Errai UI's data binding integration. additional features were added to the Errai IOC integration API to make the integration cleaner. Also a DataBindingUtil was introduced so the DecoratorStyleBinding extension could leverage the same functionality used to look up the binder. This change also fixed a bug with the data binding integration in that it didn't support method injection (only constructor and field). Improvements to the InjectUtil utilities allowed a lot of the integration code to be removed here.
- added special support for using meta-annotations as decorators. When a meta-annotation is used, the decorator API will treat all annotations with the specified meta-annotation as a member of that decorator. The @StyleBinding functionality is implemented atop this new behavior.
style bindings fully implemented
code cleanup
code cleanup
fix to buffer filtering -- was treating '{' and '}' inside strings like part of the JSON structure
Merge branch 'master' into 3.0

Conflicts:
	errai-bus/src/main/java/org/jboss/errai/bus/server/io/BufferHelper.java
Merge branch 'master' into 3.0

Conflicts:
	errai-bus/src/main/java/org/jboss/errai/bus/server/io/BufferHelper.java
fix to deadlocking problem on machines with 2 cores
support clientId as a URL attribute in StandardAsyncServlet
fix to SSE implementation
make sure GWTUtil hooks into the central CacheUtil so it is properly cleaned
defensive check. do not poll if no queue.