Support wget as a provider

Downloading redmine from version control and traditional urls is now
supported with svn beeing the default.
Logrotate script now uses redmine log from webroot

The logrotate script had the directory hardcoded for rails log. The
redmine log enabled by default was residing in ${redmine::webroot}/log
Fixed apache variables

With the deletion of params.pp, the apache variables are now taken
straight from apache.
Removed hardcoded path for chown
Removed passenger from the package list for debian

The package should be installed by the passenger puppet module.