all single quotes to double quotes in code
update to gitignore for Tex and OSX
Merge pull request #124 from ehsteve/code_updates

Simple code updates and gitignore
Make reference list consistent and in one bib file.

Closes sunpy.sunpy-0.4-paper/#121
Add Python package references to introduction.

Closes sunpy/sunpy-0.4-paper#119
standardized mint display, moved code out to files

also created build_article script
removed spaces
Merge pull request #125 from Cadair/references

References
Merge remote-tracking branch 'upstream/master' into code_updates
small changes to address #122
fix for issue #111
Fix for issue #113
moved code
created code text files
added ipython notebook to check code and figures
Merge pull request #128 from ehsteve/master

Various Mixed up Fixes to text
small fix for issue #117.
Merge pull request #129 from aringlis/master

Small fix for issue #117.
correction to database wording to address #114
Merge pull request #126 from ehsteve/code_updates

Code block Update