Added tests for wave_unit_catcher()
Issue #929: Added a few test cases
Issuee #929: Changed the test for wave_unit_catcher() by including numpy's allclose
Issue #929: Changed the values in the test_values list in the test for wave_unit_catcher()
Issue #929: Checking type of hek results using isinstance()
HMI Magnetogram colormap
Added Docstrings
Added CHANGELOG entry
updated docstring
move values to np.array
Database Docs Update (database.rst)

Modified the doc entry for "Connecting and initializing the database"
Database Docs Update (database.rst)

Edited "Adding new Entries" main article
Database Docs Update (database.rst)

Modified "Removing Entries"
Removed a race condition, while accessing common data via download threads'
Modify the EIT files so they are proper FITS as astropy want them to be, also they include a history tag
Write each line in comments and history to a seperate FITS card.

New line characters are not allowed in COMMENT and HISTORY header cards.
This writes each line in meta['COMMENT'] to a seperate FITS card.
Remove some deprecated code from mapbase tests
Add a offline build to Travis matrix and bump versions.
Set the offline test flag properly
Merge pull request #2 from Cadair/fix_eit_files

Fix eit files