temp
Fix "c" behavior with newlines.

LineWise c should not delete last newline. Fix by adding newline and
then going back one character.

Fixes #673 and #674.
Persist current regex across :reload.

So that you don't lose your search highlighting on :reload.
Add persistentSearch configuration variable.

Fixes #685 by making persistent search opt-out. Variable defaults to
True, set to False and Yi will ignore the regex when loading
persistent state.
(MAINT) Remove line break for readability.
(#647) Expand graphics before wrapping lines.
(#647) Handle line wrapping edge cases Vty's drawText function.
(#647) Handle cursor positioning edge cases in SimpleLayout

Signed-off-by: Wayne Warren <waynr@sdf.org>