--==-- ActionButtonOnUpdateFix Functionality Description --==--

This addon fixes an issue with the default UI's action buttons that causes them to use
excessive CPU time. Essentially, the default UI updates the flashing and range indicator
status of every action button every time the UI is redrawn (usually ~10 times per second,
varies by FPS), rather than just the buttons which are capable of flashing (attack or
autorepeat actions like wands and Auto Shot) or need a range indicator (because
they are ranged actions). This addon removes the updating for those buttons which
do not need it. The benefits depend on how many buttons you have visible and how
many of them actually have some range component, but the reduction in CPU usage
for updating these buttons should be 30-70%.