Props app with postgres backend and custom prop types

Added:
-Ability to create new prop types
-postgres backend
-Ability to give props in Internet Explorer

![screen shot 2013-06-13 at 11 21 16 am](https://f.cloud.github.com/assets/3051943/650165/156bbe0c-d456-11e2-98c4-705af123ae60.png)
![screen shot 2013-06-13 at 11 21 02 am](https://f.cloud.github.com/assets/3051943/650166/157db10c-d456-11e2-8808-8ae375c4543e.png)