exports error types, jasmine tests all pass
updates readme to follow standard outline, fixes #17
adds session object, fixes #11
adds documentation and testing for new session object
finishes unit testing on tokens, fixes #12
adds HelloWorld application, fixes #14
helloworld walkthrough edits
gitignore Mac OS .DS_Store files.
Docs for v2.2.
Generated docs for v2.2.
Corrections for archiving docs.
Merge branch 'v2.2-docs' into modernization

Conflicts:
	README.md