Fixed :qpush and :qunshift without parameters (#52).

These commands should use current URI if they where called without any
parameter, but cause of the migration of the way how we parse the inputbox, we
got always a parameter or better right hand side.
Fixed none found :qunshift command.

The command was put onto the wrong place so we could not find it and
considered this command as unknown. Now it's put to the right place to get it
working.
By the way some missed pre-compiler flags added.