api(<names>) for selecting API:s to use.
moved xhr from request.js to xhr.js
adjusted api() methods
disabled BatchAPI
use utils.dburl
moved connection string helper to url.js
removed unused extend requirement
updated microTask to handle phantomjs & fixed test runner + added arango.debug flag, fixes #13
removed getUser() due to new authentication scheme in ArangoDB, relates to #3
Merged with devel