On AZERTY (French) keyboard, suppress "_" key for zoom out, accept "-" for same.
Correct several potential faults discovered by Coverity static analysis
Correct fault on arriving at end of temporary route with route properties dialog open.
Disable "[]\" chart rotation keys unless enabled by hidden config entry
EnableRotateKeys=1
Add "WGS_84" and "WGS-84" as aliases to "WGS84" chart datum.
Sync translations with Crowdin
Correct physical display size logic for rotatable devices.
Merge pull request #6 from OpenCPN/master

Merge commits from Dec 28 to Dec 30