pull request TriMoon. Bump version 0.7.0

Moved the start script for GM and chrome back to the root folder because
it's more convenient for the build script
Load enabled scripts
Save Options and replace qx.util.Json with qx.lang.Json
Make Lou BOS independent of Compat later
Make LoU BOS independent of Compat layer
Put Extensions button in main menu
Fixed option page loading and button
Load cellrenderer early before child classes
Added script manager and LoUTweak for GM - 0.7.0
Temp fix for unavailability of github pages