simplified color setting method
simplify adjust line space method
simplify set font method
simplify set wide font method
simplify create scrollbar method
simplify input finished method
simplify add toolbar item and set state toolbar item methods
simplify show toolbar method
some reordering of delegate methods
simplified some methods
simplified some methods
ask whether delegate responds to show toolbar
simplify set scrollbar position method
simplify set pre edit row
simplify set antialias
simplify activate im
simplify set im control
make show tabbar required
Merge branch 'consolidation'

consolidate some of vim controller's delegate methods