Rename url_with_host to absolute_url
Rename url_with_host to absolute_url

Also add alias relative_url for url

merb/merb,wycats/merb,benburkert/merb-core,wycats/merb,wycats/merb,wycats/merb,wycats/merb,benburkert/merb-core,merb/merb,merb/merb