Feature request: password/gesture protect web apps

[subiol]

Some of the webapps created with this app are somehow sensitive, hence why they are in their own instead of just in the normal browser.

It would be useful to have the option to chose to password protect (or gesture or other methods) each webapp (ideally on a per webapp basis).

For example, if we create a webapp with access to a banking account and the phone is stolen, it can create a lot of damage. If the banking webapp is password protected and won't open unless the password is introduced,, it can avoid a lot of pain.