add exit_ca_mode to reset

[john-peterson]

add exit_ca_mode to reset

resetting the terminal ought to mean return to main buffer

this is equivalent to

tput te
echo -e "\e[?1047l"

disable mouse

i placed this after reset_2string that disable mouse input for bash that dislike that

for me this is equivalent to

echo -e "\e[?1002l"

crash

this is a typical necessity after crashes in bash both directly in the emulator and inside tmux with mouse support

alias mouse='echo -e "\e[?1002l";tput te'

test

i have no test program for this but my mcedit has a bug that allows me to test it. pressing help and left crashes back to bash without restoring the buffer or mouse flags