PfP: Pain-free Passwords 2.2.3

This release adds access key support to the user interface. Access keys become visible when the Alt key is pressed and can be triggered by pressing the corresponding letter in addition. Additional changes in this release:

• Various improvements to the way autofill works (issues #102, #108, #109, #110, #111).
• Updated and unified icons.
• Switched to another code generation tool, producing more compact and more readable application code.