Fix PC matrix calculation from CD matrix.

This fixes a bug with SWAP files.
Write some broken tests.
Fix mapcube.plot()
Merge pull request #1162 from Cadair/0.5_map_cube_fixes

Fix mapcube.plot()
Fix of HELIO parse (and include the timeout)
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
Merge pull request #1158 from dpshelio/0.5helio

Fix of HELIO parse
Fix CD matrix test and test file
Merge pull request #19 from ayshih/cd

Fix CD matrix test and test file
fix database test numbers
Merge pull request #1145 from Cadair/0.5_cd_matrix_fix

[Review]: Fix PC matrix calculation from CD matrix.
Update database test
Mark test_goes_url() as online
Merge pull request #1200 from drewleonard42/0.5

Apply Travis fixes to the 0.5 branch