make regex for matching single quote more specific

A-z matches non alphabetical characters as well (like [, ^, and _);
only want to not match when apostrophe preceded by letters of either
case or an underscore (underscore in case have place holder for name
e.g. ______'s raging bile duct)
mention vim-textobj-quote
start X automatically when login on tty1
switch to pinentry-qt4

pinentry-curses is absolute shit: it doesn't allow backspace, and
sometimes it gets stuck eating 100% cpu for a thread
pinentry-gtk-2 doesn't recognize keypresses for me anymore
pinentry-qt4 is ugly, but at least works
switch from imlibsetroot to setroot