Pull for next release

The following changes:
- suffix folding
- arpeggiated stroke input for non-NKRO keyboards can be turned on in config.
- save position (and size where applicable) for windows
- Added stroke display window with two styles (paper and raw) can be opened from options and can be made to always open. Can optionally be always on top.
- Support for multiple dictionaries with the lowest dictionary having priority.
- Better support for punctuation in caseCATalyst dictionaries
- Backspace keystrokes when using keyboard to activate plover (resume, toggle and quit commands)
- Fixed saving of stop bits in serial config dialog