Merge pull request #56 from parrt/master

Run antlr command saves grammar file changes. Fixes #55.
Fixes #50. getText() in the Intellij lexer adapter did not avoid overflow. Mirroring what ANTLR does.
oops; reset project File
Merge pull request #57 from parrt/fix-stream-overflow

Fixes #50. getText() in the Intellij lexer adapter did not avoid overflow.