JSLint, todo, fix tabs, Fix an issue in passing file URI when fallbackToBrowserUsingFilePath is enabled and caught, Support passing `webappdir` flag along with a hard-coded `webappsite` (note that the already existing files processing does not yet allow hard-coded URLs as with this new flag, nor does the `webappdir` directory passing yet support filetypes.json processing); deal with complaint by XPI compiler re: dependencies (part of XPI and repo anyways); bump version to 1.2.0; add simple demo for adding directory passed to app to textbox (more useful instead for privileged AsYouWish apps)