Add validations to forms

Added validations to all inputs and display them in tooltips

![rejection-reasons-validations](https://cloud.githubusercontent.com/assets/2394509/3808817/5b336452-1c7c-11e4-95d8-5674657bfb2f.gif)

you can reverse the if - else order and then 
```javascript
if reason.validationError
  <the code that is currently under the else>
else
  < the code under the if>
```