Merge pull request #1 from mswain/master

Slides for my Talk
adding pres details
Merge pull request #2 from ccyphers/master

adding links to slides and code samples
Adding slides from Feb 2012 presentation
Adding sides from Jan 2011 meeting Gaming w/ Gosu
add 2012-02 meeting description
Gosu presentation is now longer missing

Was added 2 years ago..
Add Unix Shell Tricks for Rails Devs Presentation