Removed libxml dependency, performance improvements, bump 0.1.1

Libxmljs is now replaced with a bridgesupport specific xml parser.

The new parser is 36% faster and lower code footprint (maintenance).  

The new parser uses 49.1% less memory (technically leaking memory fixes).

Added a few new unit tests for performance/memory. 

This passes all existing unit tests (unmodified), no changes in the API.

This code does all the bridge support parsing, i tested it on Lion/Mavericks and Yosemite on all of the /System/Frameworks (except AppleScriptingBridge framework threw an unrelated error in all versions, don't know why).  Seems to work and its faster and less memory than libxmljs.