Fix mapcube.plot()
Merge pull request #1162 from Cadair/0.5_map_cube_fixes

Fix mapcube.plot()
make travis to install sphinx 1.2.2 to avoid the new conflict produced by the not-updatd sphinx module in astropy
Merge pull request #1179 from dpshelio/sphinx05

Make Travis to don't use the latest version of Sphinx
Merge remote-tracking branch 'upstream/0.5' into 05helio