allow line comment on last line
adding Java7 grammar
Minor mod in order to test GitTortoise commit.
Anoter trivial change for testing GitTortoise commit.
Added check for newline or EOF to LINE_COMMENT
Merge pull request #5 from cowang/terrys_change

Terrys change
Merge pull request #2 from antlr/master

Include change to Terry's Java.g4
Merge pull request #3 from cowang/add-Java7

Merge add-java7 branch to master