updated lightcurve guide
updating lightcurve
replace lower case 'fits' with uppercase 'FITS' (since FITS is an acronym) in map section only
better header titles for lightcurve
corrected section numbering
all 4 sections in lightcurve filled in
fixing underlines
fixing underlines
Merge pull request #787 from wafels/0.4_doc_changes

0.4 doc changes