Removed repitition in EVE lightcurve header
Missing data EVE lightcurve object Handled
Missing data EVE lightcurve object Handled PEP8 compliant
Merge branch 'master' of https://github.com/sunpy/sunpy into mdata
fix for lightcurve handling of time ranges across multiple dates. Data slicing was being handled incorrectly, leading to buggy behaviour.
changed data slicing method to pandas truncate function.
Removed Hard-coding of value for missing data
variable names now more descriptive
Revisions according to suggestions
Merge pull request #891 from aringlis/goes_fix

Fix for GOES lightcurve range-based queries
Merge pull request #885 from gunner272/eve

Removed repitition in EVE lightcurve header
Merge pull request #889 from gunner272/mdata

Missing Data handled for EVE LightCurve object
Mark broken GOES API tests as xfail
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Merge pull request #898 from Cadair/master

Mark broken GOES API tests as xfail
Merge remote-tracking branch 'upstream/master' into lightcurve_refactor

Conflicts:
	sunpy/lightcurve/lightcurve.py
	sunpy/lightcurve/sources/eve.py
Merge pull request #900 from Cadair/lightcurve_refactor

Lightcurve refactor