Add test for tuple-based (d, m, s) or (h, m, s) initialization of Angle
Minor cosmetic tweaks in Angle.__new__
Add test for setting list of quantities
Fix Angle initializer to support passing in lists of quantity objects
Adjust raised errors to show correct message if no unit is given
Fix for failing doctests
Support numpy 1.5.x by making one of the tests accept TypeError or ValueError
Merge pull request #2239 from eteq/fix-angle-multi-init

Fix Angle initialization for lists of quantities