Improvements for multichar editing...

issues/879
ok  1) wordlist markup for active char (first, single char)
ok  2) /braceleft/
ok  3) add to charview View, Next Line in Word List, like in metricsview
ok  4) Switch to the active glyph by clicking anywhere between its left and right side bearing lines
ok  5) Stop 'ghosting' of View, Show, Fill