Multiple fixes:
- Column count was off by 1.
- "Options" button transform into "Save", to make it clear that clicking the button will save the options.
- Do not return to input when click "Restore defaults", because the user may want to undo the Restore using, for example, CTRL+Z. Instead, focus on "Save" button.
- Remove 'class' attribute instead of just emptying it.
- Function "go()" does not seem to need parameters as it is called only once.
- More unique cache manifest name "uglifyjs-online.appcache".
- Fix .header overlapping .in-container
- General formatting.