basic WebDAV tests
refactoring, RoboHydra tests
RoboHydra tests, URL sanitizing

* RoboHydra tests
* intelligent URL sanitizing (fixes #58, fixes #49, see issue #11, should fix #45)
Always append trailing slash to address-book/calendar home set to avoid redirections
avoid NullPointerException (hint from ANR)
Importing calendar colors from <calendar:color xmlns="http://apple.com/ns/ical/"> element (see #31)
Version bump to 0.3.8 (version code 12)
Merge remote-tracking branch 'blessed/master'