Changelog was updated.
Fixed long undo/redo action name.
Fixed coding style.
Fixed showing the caption of dataset that is installed badly.
Copyright was updated.
Better check for new version,

- The other servers were added for fetching update information.
Updated gitignore
Fixed focus on search toolbar.
Handling setting's changes that need to relaunch.
Added git-revision and build-time to about dialog.
Updated translation.