Whitelabel KMC

This is a simple implementation for white-labeling the KMC.
It uses new ``` whitelabel.ini ``` file to store custom logo and support url.

##### Example: 
```ini
; Partner Id
[496152]
; URL to logo
logo_url = "http://www.example.com/images/my_custom_logo.png" 
; URL to support
support_url = "http://www.example.com/my_custom_support_form" 
```
Please review & merge