created updated documentation html by executing python -m robot.libdoc src/RequestsLibrary/RequestsKeywords.py doc/RequestsLibrary.html
removed vcrpy, fixed setup.py and depricated current Get Put Post Patch Head Options Delete in favor of Get Requests to prevent keyword overlap and added testsuite for new keywords.  Cleaned up code formating as well
corrected typos and added info about additional keywords for Patch, Options and Create NTLM Session
Merge pull request #47 from jerry57/master

Deprecating keywords to prevent overlap, code cleanup, added keyword documentation file and included changes from rbovill as well