server: Unified "Detailed status" section in all webinterfaces.

- Where missing, added links to "strace" sub page.
- Made URLs relative by omitting the leading "/".

git-svn-id: https://xtreemfs.googlecode.com/svn/trunk@3620 f8528748-c2c0-11dd-ba5c-d3b7c2b3b534