Add Builder for PlaceRequest

New internal Builder class for PlaceRequest; most constructors as well
as with method have been deprecated in favor of new builder methods.
Package visible constructor has been made private and its usage in
RouteTokenFormatter adapted to usage of builder.
Implement CodeReview comments
Minor formatting changes
Updated GinUiBinder to work with GWT 2.5+

Added a case in CarStore to cover the feature.
Merge branch 'master' into cg_ginuibinder_update

Conflicts:
	gwtp-carstore/src/main/java/com/gwtplatform/carstore/Debug.gwt.xml
Simplification of the gwt.xml files
CR changes
Resolved compile build error and simplified GWT pom config
Modification to service exception to log the full exception on the server side and clear the cause before sending back to the client
Merge pull request #244 from ArcBees/cg_dispatcher_exception_logging

Better logging of Action exceptions on the server
Merge pull request #240 from ArcBees/cg_ginuibinder_update

GinUiBinder update for GWT 2.5
Merge pull request #239 from bmoritz/bm_PlaceRequestBuilder

Add Builder for PlaceRequest, fixes issue 128
Merge remote-tracking branch 'origin/master' into rest_dispatch

Conflicts:
	gwtp-carstore/pom.xml
	gwtp-carstore/src/main/java/com/gwtplatform/carstore/CarStore.gwt.xml
	gwtp-carstore/src/main/java/com/gwtplatform/carstore/PhoneGap.gwt.xml
Merging master