Improved mobile view #151 (#150)

- fixed group by for mysql mode
- only user can edit own prefs
- updated installation README
- pagerfanta shows less links
- improved manual tab
- moved user profile link to pref tabs
- added menu links to top navbar
- moved page actions to breadcrumb position
- integrated daterangepicker and improved toolbar forms
- bugfix for time rounding

src/Controller/TimesheetControllerTrait.php

@@ -90,6 +90,8 @@ trait TimesheetControllerTrait
                 $record->setEnd($end);
             }
 
+            // TODO validate that end is not before begin
+
             $entityManager = $this->getDoctrine()->getManager();
             $entityManager->persist($entry);
             $entityManager->flush();
@@ -132,7 +134,9 @@ trait TimesheetControllerTrait
                 }
             }
 
-            $entityManager = $this->getDoctrine()->getManager();
+			// TODO validate that end is not before begin
+
+			$entityManager = $this->getDoctrine()->getManager();
             $entityManager->persist($entry);
 
             $entityManager->flush();