Fixed ERRAI-671 - Build/Compilation hangs when running with only one CPU

We need at least two threads to run a code generator. One for the generator itself and one for the reflection scanner which is used by all generators. The problem was that we initialized our ExecutorService with a fixed sized thread pool sized by the number of available processors. We now use at least 2 threads or the number of processors if it's higher than 2.
Client CDI classes were not devoted when the package name starts with `client.`

Follow up of ERRAI-465
Merge pull request #73 from jbarop/client-devoting-cdi-fix

Client CDI classes were not devoted when the package name starts with `c...
Fix and regression test for ERRAI-672
Added unit test for ERRAI-672
Added `-out` parameter to Errai's JUnitShell

`-out` is a deprecated but valid argument for GWT's JUnitShell. Applications which
use `-out` failed with `Unknown argument: -out` when `errai-weld-integration` is
on the classpath.

For reference: GWT 2.5.1 JUnitShell
https://github.com/gwtproject/gwt/blob/2.5.1/user/src/com/google/gwt/junit/JUnitShell.java#L167
Merge pull request #74 from jbarop/idea-junit-weld

Added `-out` parameter to Errai's JUnitShell
Excluded JUnitShell from maven compile (breaks deployment in JBoss)
Implemented ERRAI-673: List/Set/SortedSet as @QueryParams
JUnitShell also needs to be excluded from integration-test profile
Fix to interceptor generation when using collections as resource parameters
Inheriting from jboss-integration-platform-parent
Upgraded jboss-logging to satisfy enforcer plugin
No longer printing gen. code to stdout (not needed: gen. code is written to files in .errai)
Upgraded jboss-integration-platform to 6.0.0.C3
Ensured to never generate the cache/debug files in .errai more than once
Relying on Mockito 1.9.5
Ignore eclipse annotation processing config file
Made exception marshalling work with dynamic marshalling (was only working for static marshalling)

Clarified MappingContext.getMarshaller() API contract, added test, and fixed the dynamic impl.
Updated to new version 2.4.3.Final