Merge pull request #57 from bridgethillyer/master

Add for section to data structures
Fix font errors
Expand slides on for
Add empty shells for modules 3, 4, and 5
Add intructions on deploying to heroku
Moving for to the flow control section
Expands the for section
Updated slides with for section
Added boolean logic section
Merge pull request #58 from kariannemah/deploy

Add intructions on deploying to heroku
remove sloppy outlines from my previous pics
Merge pull request #60 from mrwhelan/master

remove sloppy outlines from my previous pics
Update directory structure in first-program  and update status in README
Started Module 4
Merge pull request #61 from kariannemah/dir_structure

Update directory structure in first-program and update status in README
Added module 4 slides
Updated README
Merge remote-tracking branch 'upstream/master'
Remove unnecessary material from README
Move intro material suggestions to separate file.