LPS-33468 - Icon taglib JavaScript performance improvements

Hey Nate,

Attached are the new performance improvements to the icon taglib.  These updates can be found at  http://issues.liferay.com/browse/LPS-33468.

NOTE: DynaTrace performance profiling data can be found at https://docs.google.com/spreadsheet/ccc?key=0AsMk027ozTuBdHVHS3hVdjNrQXNKT2g4OHlmVWRwTVE#gid=0.

Please let me know if you have any questions.

Thanks!

- Jon Mak