Open source contributions

Contributions.md

Links:

[1]: Buildbot: One, Two, Three, Four

[2]: Some important patches (Sympy) : One, Two, Three, Four

[3]: Sympy GSoc: Majority of code, Official link

[4]: Mercurial: One, Two, Three, Merged Patch

[5]: Servo: Merged PR

[6]: Joomla: Several PRs

[7]: WordPress: One, Two

[8]: Django, Patch

[9]: SimpleCV : One, Two, Three, Four

[10]: django-browserid, Patch

[11]: Sugarlabs One, Two