Merge pull request #153 from maieul/master

assembleur 64 bits
Added introductory book on parallel computing

This book "is intended to provide only a very quick overview of the extensive and broad topic of Parallel Computing."  There is another book by the same title, but its text isn't free.
2 Mathematica Books added

* [Stephen Wolfram's The Mathematica Book] (http://reference.wolfram.com/legacy/v5_2/)
* [Wolfram Mathematica Tutorial Collection] (http://www.wolfram.com/learningcenter/tutorialcollection/)
Added Jeff Erickson's Algorithms Course Materials

Includes homework and his algorithms course notes.  Only reason it's not a book is that Jeff says "All textbooks suck."
Merge pull request #155 from corragon/patch-1

Added introductory book on parallel computing
Merge pull request #156 from danielscarvalho/master

2 Mathematica Books added
Merge pull request #157 from corragon/patch-2

Added Jeff Erickson's Algorithms Course Materials