v0.14.1

Bugfix release:

[Einar Arnason]

• Add missing include (failed to compile only on some systems)

[Willow Barraco]

• Regression fix: keyboard didn't re-show on SIGUSR2 anymore

[Maarten van Gompel]

• set preferred scale default to 1 (fixes isssue #43) (thanks to @flexibeast)