Added How to be a Programmer under Professional Development
Added a few books.
[es] Added 97 cosas que todo programador debería saber
Add french translation of "Free as in Freedom", SW, RMS
Add "Free as in Freedom", S. Williams, R.M. Stallman
Merge pull request #407 from sugarjig/patch-1

Added "How to be a Programmer" under Professional Development
Merge pull request #409 from esparta/master

[es] Added 97 cosas que todo programador debería saber
Merge pull request #410 from ericguirbal/rms

Add "Free as in Freedom" by S. Williams, R.M. Stallman, and its translated version in french
Merge pull request #408 from chuanjin/master

Added a few books.
Merge pull request #411 from ericguirbal/en

Add "SDL::Manual Writing Games in Perl", Kartik Thakore
polish book list & README fix
Added a Cellular Automata section (As I don't feel it fits into any of the other sections) and added a master link to a collection of ebooks about Cellular Automata. I'll be sorting through these shortly.
clojureccript koans
[ja] +2 Python books, +1 Misc book
[ja] +1 Python book
Merge pull request #412 from Scony/master

Polish book list & README fix
Merge pull request #413 from luminousspice/ja

[ja] +3 Python books, +1 Misc book
Merge pull request #414 from Gallefray/master

Added a Cellular Automata section (As I don't feel it fits into any of t...
Merge pull request #415 from johand/cljscript

clojurescript koans
Added Sinatra book