Option page styles:

I have made following changes in admin styles. First point is already mentioned here https://github.com/gambitph/Titan-Framework/issues/88
1) Tabs and buttons set with default WordPress style.
2) Heading styles.
3) Option settings styles.

Here is the page screenshot.
![option-page-style](https://cloud.githubusercontent.com/assets/1140315/2839319/787184b4-d045-11e3-939e-d295338915ec.png)