Update API break docs

NathanW2 · NathanW2 · commit 01d1be9d7057 · 2017-11-27T14:52:36.000+10:00
diff --git a/doc/api_break.dox b/doc/api_break.dox
@@ -2012,6 +2012,13 @@ QgsProject        {#qgis_api_break_3_0_QgsProject}
 - writePath() does not accept second argument (relativeBasePath) anymore. Use QgsPathResolver instead.
 
 
+QgsProjectionSelectionWidget	{#qgis_api_break_3_0_QgsProjectionSelectionWidget}
+-----------------------
+
+- dialog() has been removed
+- setMessage() has been added to set message on inner dialog.
+
+
 QgsProjectPropertyValue        {#qgis_api_break_3_0_QgsProjectPropertyValue}
 -----------------------
 
