fixed display of catalog in init lens selection
fixes #24
UploadModel stringifies current model and pushes it, instead of taking the last entry of actionstack

so you get all the latest data and settings, without need to update the actionstack first (by an action / click on the model)
fixes #23
redesigned glass settings dialog

fixes #21 partially
added isSym option to glass settings
fixes #21
mend
glass settings Dialog fixes