Protobuf grammar improvements.
Protobuf grammar improvements.

Allow package names with multiple dots in them.
Using symbols for open brace/close brace so that using a SkipGrammar has
a change to clean up whitespace/comments.
Add SkipGrammar decorator by default so that it works out of the box
with real world .proto files.

osric-the-knight/foam,jlhughes/foam,jlhughes/foam,foam-framework/foam,osric-the-knight/foam,mdittmer/foam,jacksonic/foam,foam-framework/foam,jacksonic/foam,jlhughes/foam,jacksonic/foam,jacksonic/foam,foam-framework/foam,foam-framework/foam,mdittmer/foam,mdittmer/foam,osric-the-knight/foam,mdittmer/foam,osric-the-knight/foam,foam-framework/foam,jlhughes/foam