Installer Release v2.8.1

This release adds the option to specify a camera configuration filename explicitly in your flex_config. e.g.

camera.NAME.config_file: "my_config_file.ini"

If this is not specified, gScript will assume there is a file in Config/ called cam_config_NAME.ini for wmf and imaqdx cameras and cam_config_NAME.cset for peak cameras. Note that if you have a UI-* camera (i.e. a USB2 gantry-head camera) you will use an .ini file even with the peak driver so you must specify this in your flex_config.