* More color syntax speedups:  Determine in reset_multis() whether we really need to call
          edit_refresh().  Additional global var edit_refresh_needed() to hopefully reduce  
          repeated calls to the function.  New helper funcs reset_multis_before() and 
          reset_multis_after().



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4364 35c25a1d-7b9e-4130-9fde-d3aeb78583b8