adding to first draft of Lightcurve section
more additions to the Lightcurve section
adding pdf figures
hacking at utilities section
changes and images
Merge pull request #11 from Cadair/master

changes and images
big expansion of intro text
added first draft of database section
added code section to constants
typo
fix link in README
Introduction to spectra
Fixed reference symbol and added url to packages in main file
Merge pull request #13 from aringlis/master

Edits to lightcurve section
Introduction to HELIO
First draft for Dev and Future as well lc tweaks.

Changed to minted typesetting for code examples in lc section.
Merge pull request #9 from ehsteve/master

My Contributions
Merge pull request #12 from derdon/database

added first draft of database section
Merge pull request #15 from dpshelio/helio

HELIO - intro
Merge pull request #16 from dpshelio/spectra

Spectra section