Bug 574780 – Speed up PLS parsing
Bug 574780 – Speed up PLS parsing

Speed up PLS parsing by using a hashtable to store and lookup
the data. Original patch by Ivan Frade <ivan.frade@nokia.com>

MathieuDuponchelle/totem-pl-parser,MathieuDuponchelle/totem-pl-parser,MathieuDuponchelle/totem-pl-parser,zsx/totem-plparser,pwithnall/totem-pl-parser,pwithnall/totem-pl-parser,MathieuDuponchelle/totem-pl-parser,zsx/totem-plparser