Removed "Routes" library

Routes requires "setuptools" installed on each host to work. After the security release (PR #44), this library can't work any more.
This is an "emergency" fix. A better solution will be proposed in a next release (custom route object? Use another http framework instead of CherryPy? …)
Merge pull request #63 from CentralReport/fix-routes-lib

Removed "Routes" library
CentralReport doesn't require setuptools on Linux any more. These commits remove the "repoze.lru" library too.