Main Menu Font size reduced

font size reduced to accomodate two more items.

Before:-
![aap main menu change before](https://f.cloud.github.com/assets/3414195/2356150/0cec94fe-a5e8-11e3-9c90-b4d990ba225c.png)

After:-
![aap main menu change after](https://f.cloud.github.com/assets/3414195/2356157/1eb4fece-a5e8-11e3-8858-131c4825c7f4.png)


ref-> #158