Switch to use grammar and language config from TM4E

Simplifies the plugin and consolidates the resources.
P2 repository changed to instead of mirroring nodejs and now adding to
tm4e adds repository reference to wwd and tm4e latest repositories to
ensure there isn't half baked mirrorind of dependencies.

org.eclipse.shellwax.core/META-INF/MANIFEST.MF

@@ -21,4 +21,5 @@ Require-Bundle: org.eclipse.ui.genericeditor,
  org.eclipse.core.filebuffers,
  org.eclipse.text,
  org.eclipse.core.jobs,
- org.eclipse.wildwebdeveloper.embedder.node;bundle-version="0.2.0"
+ org.eclipse.wildwebdeveloper.embedder.node;bundle-version="0.2.0",
+ org.eclipse.tm4e.language_pack

org.eclipse.shellwax.core/build.properties

@@ -3,6 +3,4 @@ output.. = target/classes/
 bin.includes = META-INF/,\
                .,\
                plugin.xml,\
-               grammar/,\
-               icons/,\
-               language-configurations/
+               icons/\