File cleanup

I tried to clean up unused files.

I didn't touch images because I'll work on them on compass branch.

I could not be sure about those:
* coming_soon.html
* loading.html
* planned_outage.html
* service_down.html

I think those are needed to build war:
* META-INF
* WEB-INF
* build.xml


I cannot be sure about test folders. Are they active or old?