.idea files added to ignore list
./util renamed to ./utils (remove confusion with native node 'util')
added authorization module (basic + digest), with test

integrated in request handler
squash
data store + cache bug is free (not unit tested)
ignore coverage reports
cache module test plan
data store test plan
cache tests
AuthError fix

Auth test improved
Updates to cache tests
DataStore module fixes + tests
case for case sensitive travis error
fixed case sensitive require MemoryStore error
fixed case sensitive require MemoryStore error