Modify the EIT files so they are proper FITS as astropy want them to be, also they include a history tag
Remove some deprecated code from mapbase tests
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.
changed in by is 'history' and don't add empty keys to the header
Merge pull request #1027 from dpshelio/fixEIT_0.4.1

Fix EIT and file headers for 0.4.1