New file
capture/drEYEve.py : the plugin drEYEve
        a popup window "drEYEve" is shown with the state as an interger and a string
        function update compare the gaze x position and modify the int value

Modified
capture/world.py
        plugin drEYEve is added in the world view
Merge branch 'master' of https://github.com/vdurrmann/pupil