Fixed a case where slop couldn't grab the mouse due to the window manager already having it grabbed due to a key combination being pressed. Slop simply waits for the duration of --gracetime in order for the key combination to be released, thus freeing up the mouse.
ATTENTION PACKAGE MAINTAINERS: Please use the CMAKE_INSTALL_PREFIX to set the install location. The binary is now installed to "CMAKE_INSTALL_PREFIX/bin/slop" instead of the original "CMAKE_INSTALL_PREFIX/slop".
Cleaned up code
Windows are now selected via EnterNotify events
Improved response time on rectangle drawing (no longer creates new rectangles when window selection changes, waits 0.01 seconds between re-drawing for xorg to catch up and display)
Removed offset settings as they seem useless
Added --version option
--nodecorations now doesn't attempt to actively search for the correct subwindow. Now it just allows for selection of subwindows. This should keep slop from crashing/not work properly on weird WMs like openbox, but may make it act a little unexpectedly since you can still click on decorations to include them.