Merge pull request #42 from bvssvni/master

Updated .gitignore
Merge pull request #43 from bvssvni/master

Moved apps to examples folder
Merge pull request #44 from bvssvni/master

Upgraded to latest Piston
Merge pull request #45 from bvssvni/master

Added calc example
Merge pull request #46 from bvssvni/master

Added 'per'
Merge pull request #47 from bvssvni/master

Triangles per L1 cache
Merge pull request #48 from bvssvni/master

Changed 'per' to 'product'
Merge pull request #49 from bvssvni/master

Testing new stuff
Upgraded