[composer] Make sure atlas navigation controls are disabled if no matching atlas features are found
Update to new style side bar style for dialogs.

	- New blue-grey with white text style dialog
	- Side panel runs top to bottom
	- Icon size is read from settings
	- Option to disable in options dialog
german translation fix
Fix side bar colour issue on Linux
[QGIS-Server] Update UI for WCS configuration

In the project properties OWS tab, the user can select the layers he
would like to publish in a Web Coverage Service.
fix crash in mapserver (introduced with 1215d0b01)
[composer] Tweak interface for atlas previews, fix occasional wrong extent in atlas previews.
[composer] Don't update atlas filter until editing finished, prevented, prevents errors while creating filter expression
Always emit signal when attribute values change
Fix #9268

  * Remove QgsVectorLayer::blockSignals() calls from QgsFieldCalculator
  * Deprecate emitSignal parameter from QgsVectorLayer::changeAttributeValue( fid, field, value, emitSignal )
  * Code cleanup to update calls to the new emitSignal-less method
Dxf export: more precision for doubles
Fix #9306