Update for gpr4j
Merge branch 'master' of https://github.com/cdonnat/padacore.git

Conflicts:
	org.padacore.gpr4j/lib/gpr4j-1.0.jar
For imported projects, the linked folder is now named after the folder
in which the GPR resides. 

Fixed a problem for error markers not being added to files belonging to
second-level referenced projects.
Merge branch 'master' of git@github.com:cdonnat/padacore.git
Fix test failed due to path problem (for a change...)
Merge branch 'master' of local repository into navigator_view

Conflicts:
	org.padacore.ui/plugin.xml
Scenario
External variable are displayed by name order
Rename Scenario to ScenarioView
Builder now uses external variable value defined in the scenario view.
Cleaned manifests.
Merge branch 'master' of git@github.com:cdonnat/padacore.git
Fixed manifests merge problem.
Merge branch 'master' of local repository into navigator_view

Conflicts:
	org.padacore.ui/META-INF/MANIFEST.MF
Through hell with manifests.