v2.0.470-SNAPSHOT

See and use previous Release Notes of v2.0.458-SNAPSHOT.
This is a pre-release for testing.
Implemented first feedback:

Adaptions

• sorting heimat tasks by name in "Map projects" dialog
• importing projects now use a random color (in the edit project dialog also a "random" button exists now to generate random color)
• remove mappings of deleted keeptime projects
• improve error message for sync errors

Fixes

• fix heimat settings change required a restart before they were applied
• fix issue in sync when a mapped project had a time in heimat but not in keeptime for the day