addresses issue #121
release_* is now triggered for all press_* events. we no longer wait for a minimum timer count

However this introduces another issue where the display is not updated correctly if the mousedown and mouseup actions are very quick.
addresses #121 waits for 100ms timeout before sending release action - this might not be enough on slower system ***
updated layout library to fire resize event when the parent window is resized
updated project manager to update svg width and height when the image size is updated
Merge pull request #123 from thehogfather/alpha

Alpha updates