Use CoverageController from uaa

https://www.pivotaltracker.com/story/show/70476264
Remove doc-server

https://www.pivotaltracker.com/story/show/70614624
Fold login-server into login-server-parent and rename

https://www.pivotaltracker.com/story/show/70614624
Remove unused cobertura-maven-plugin

https://www.pivotaltracker.com/story/show/70476264