plugins are now built in one build script and plugins added as git submodule
build path of plugins fixed
mps-sl-all artifacts are not required for build-allScripts anymore
Merge branch 'master' into plugins

Conflicts:
	code/languages/com.mbeddr.build/solutions/com.mbeddr.doc.dev.build/models/com/mbeddr/doc/dev/build.mps
Merge branch 'master' into plugins

Conflicts:
	code/languages/com.mbeddr.build/solutions/com.mbeddr.allInOne/models/com/mbeddr/platform.mps
	code/languages/com.mbeddr.build/solutions/com.mbeddr.doc.dev.build/models/com/mbeddr/doc/dev/build.mps
Plugins migrated to MPS 3.1 EAP4