update the build matrix
Fix for GOES light curve, small clean up on lightcurve.py
Added fix for another FITS file format, also added a new utility in time to validate a time format
Cleaned up import statement
further cleaned up import statements

Conflicts:
	sunpy/lightcurve/sources/goes.py
Removed debug prints and more pythonic
Fixed reference to data source
Merge branch '0.4' of git://github.com/sunpy/sunpy into 0.4

Conflicts:
	.travis.yml
Merge pull request #1028 from Cadair/0.4

goes data source fix back port