Two .dsl editors in the GEMOC Studio

[dvojtise]

There are currently 2 .dsl editors in the GEMOC Studio
one provided by GEMOC that also provides completion, highlighting, navigation and advanced checking (metaprog) (cf. https://github.com/eclipse/gemoc-studio-modeldebugging/blob/master/commons/plugins/org.eclipse.gemoc.dsl.ui/plugin.xml) and one provided by ALE (cf. https://github.com/gemoc/ale-lang/blob/master/plugins/org.eclipse.emf.ecoretools.ale.ide.ui/plugin.xml)

The one provided by ALE is basic as it simply opens the file as a java property file. This is fine if ALE is installed by itself without GEMOC but leads to ambiguity about which editor is the most efficient when used in the GEMOC Studio.

I suggest improving the name of both editors in order make sure which one is used