Eric IDE included and other ides improved.
Merge pull request #464 from rmoyano/idesection

I included Eric IDE and added more information to some IDE's descriptions.
add crypto
Remove extra whitespace
Add crpto below xml in scenarios
Rework setuptools and pip docs

Clarify a little more what setuptools allows you to do, what pip is, and
what advantages it has.
Merge pull request #465 from amiralis/master

add crypto
Change license chooser from Open Art to Github

The Open Art license chooser is geared towards art/media related licenses.  The Github license chooser site is a better fit here.
Merge pull request #467 from alex-sf/master

Change license chooser from Open Art to Github
Incorporate changes suggested by @sigmavirus24
Merge pull request #466 from mandarg/master

Modify setuptools and pip docs for OSX
Merge pull request #2 from kennethreitz/master

Update from original