Set Nimbus Look and Feel

OPEN - task 79: Create Party Module 
http://github.com/DevOpsDistilled/OpERP/issues/issue/79
Set Nimbus as LAF for Client-App

Merge branch 'set-nimbux-laf' into develop
Apply Nimbus LAF

Merge branch 'develop'
Merge pull request #85 from TheKojuEffect/master

Apply Nimbus LAF