Updated SlyEdit to add author initials before quote lines. This is now the...

Updated SlyEdit to add author initials before quote lines.  This is now the default behavior, but if desired, this can be disabled with the following line in SlyEdit.cfg:
useQuoteLineInitials=false
When disabled, SlyEdit will simply prefix quote lines with " > ", as was done in IceEdit, DCT Edit, and other message editors of the early-mid 1990s.  Also, fixed a bug related to refreshing the text on the screen when a drop-down menu disappears.  This bug fix is only relevant for DCT mode.