Changes to OWL FSS JavaCC grammar:

 Don't use Java style unicode escapes (not permitted in FSS).
 Use Unicode input.
 Don't set look ahead to 2 (grammar is LL(1)).
 (~20% faster).

 Use updated package names.
 Don't allow '//' comments (not permitted in FSS)
Add SimpleCharStream class
Remove test for '//' style comments
Merge pull request #206 from sesuncedu/simple_fss_speedups

Simple fss speedups