Remove “Maintainer:” for more space

Having “Maintainer:” in each of the libraries didn’t play such an important part plus it made some of them look bad where the maintainer name was too long and the View Repo would just get misaligned.

Before
![jwtio-before](https://cloud.githubusercontent.com/assets/83319/5514985/3b98a52e-882b-11e4-89fd-7153f6fd95dc.png)

After
![jwtio-after](https://cloud.githubusercontent.com/assets/83319/5514987/5345f618-882b-11e4-8b0d-1708170f17fc.png)