Fix errors in httpserver cmd line handling introduced in previous commits
Fix errors in httpserver cmd line handling introduced in previous commits

 - Do shift command and options from system.args, it's what later command line handling code expects
 - Restore code to resolve app script as file/directory but only if it has been passed via command line

Transcordia/ringojs,Transcordia/ringojs,oberhamsi/ringojs,Transcordia/ringojs,ashwinrayaprolu1984/ringojs,oberhamsi/ringojs,Transcordia/ringojs,ringo/ringojs,ringo/ringojs,ashwinrayaprolu1984/ringojs,ringo/ringojs,ringo/ringojs,ashwinrayaprolu1984/ringojs,ashwinrayaprolu1984/ringojs,oberhamsi/ringojs