Adding support for change passcode flow (longer passcode)
Make messaging more general
Add unit tests
Merge pull request #474 from bhariharan/unstable

Adding support for change passcode flow (longer passcode)
Switch to better background color
Merge pull request #475 from bhariharan/unstable

Switch to better background color
Bugfix in upgrade step - forgot to append filetype
Merge pull request #476 from bhariharan/unstable

Bugfix in upgrade step - forgot to append filetype
Merge from unstable