Update C/C++ and Python specific styles

Update C/C++ and Python specific styles in order to look more like Solarized theme for Vim

### C/C++
![capture decran 2014-06-21 a 14 11 35](https://cloud.githubusercontent.com/assets/6019000/3348805/13d9381e-f942-11e3-9249-d2358968e7e7.png)
![capture decran 2014-06-21 a 14 15 06](https://cloud.githubusercontent.com/assets/6019000/3348806/1c10bf16-f942-11e3-9865-6e4b17d0e31b.png)
![capture decran 2014-06-21 a 14 47 50](https://cloud.githubusercontent.com/assets/6019000/3348810/4bb7c03e-f942-11e3-931e-d9f97bae65d4.png)

### Python
![capture decran 2014-06-21 a 14 35 49](https://cloud.githubusercontent.com/assets/6019000/3348814/7cca54a2-f942-11e3-8e34-2e31ce829eb6.png)
![capture decran 2014-06-21 a 14 34 21](https://cloud.githubusercontent.com/assets/6019000/3348815/864e6216-f942-11e3-8146-8ff9d49311cb.png)