update parser.y for Bison 3.0
make parser.y compatible with Bison 2.x
Regenerated parser
Removed %pure-parser, updated parser again, updated copyparser script, updated bison cmake
Merge pull request #61 from 28msec/fix-bison-3

Update parser.y for Bison 3.0, updated bison cmake scripts, updated location/script/stack.hh