Added Scala grammar

Added Scala grammar from http://www.scala-lang.org/files/archive/spec/2.11/13-syntax-summary.html
Update scala.g4
Merge pull request #102 from NormanDunbar/master

Added new grammar - tnsnames.g4 - to parse an Oracle 11gR2 tnsnames.ora ...
NEW: Code ported to CSharp

Code ported to CSharp
Removing Mutually Left-recursive Error
Update scala.g4
Merge pull request #1 from antlr/master

Update
Merge pull request #107 from vitorelli/master

NEW: Code ported to CSharp
Merge pull request #104 from NormanDunbar/master

Tnsnames grammar updated & completed.
Merge pull request #108 from lrlucena/master

Scala Grammar
Grouped operators with the same precedence so that these operators ar…
Merge pull request #109 from bkiers/ecmascript-operator-fix

Grouped operators with the same precedence so that these operators ar…