Create Project description field validates only after user has pressed save

Description of problem:
The Description field in the Create Project page is restricted to 1-100 characters.
This rule is not indicated to the user and validation only occurs after the user has pressed Save

Version-Release number of selected component (if applicable):
3.x

How reproducible:
Easy always

Steps to Reproduce:
1. Sign in, go to Projects
2. Click Create Project
3. Enter > 100 characters in the Description field
4. Click somewhere to defocus the field

• Note no error is displayed
  5. Enter a project id and name, press Save

Actual results:
"size must be between 0 and 100" error is displayed

Expected results:
This error should be displayed to the user before pressing Save, and perhaps a icon indicating the rule should be present.

Additional info: