Merge pull request #16 from apetri/master

Sections 6.1-6.2
First upload of 6.4-6.6
gaussian mixture models
updated
Merge branch 'master' of github.com:adrn/NYCastroML
Update schedule
Merge pull request #17 from weaverba137/master

Update schedule
add section 7.1-7.4
Adding directory for Chapter 7
Merge pull request #18 from lmwalkowicz/master

Adding directory for Chapter 7
Added my dimension hack for GALFA data

Who will hack with me???
moar GALFA dimensions
AP GALFA Hack