added project start and end date (#1303)

* added sortable js library
* activity in invoice is optional
* added javascript widget for paginated boxes
* fix activity dropdown for globals only
* added timesheet service to reduce code duplication
* use repository to query for teams in dropdowns
* added project validator
* validate project start and end against timesheet
* include begin and end in dynamic form requests for projects
* added timezone and language option to import flag, improve timesheet import speed
* deactivate cross-timezone filter
* add virtual fields to field order list
* composer update
* added param to ignore dates
* position loader icon fixed - fixes #1330
* permission problem when creating a new project - fixes #1340
* remove dev dependencies webserver and thanks bundle
* stop information leak (begin and end date) in duration mode - fixes #1307
* unify timesheet edit dialog for user and admins
* fix security issue, own rates exposed to unauthorized users in multi-update dialog

config/bundles.php

@@ -2,8 +2,6 @@
 
 return [
     Symfony\Bundle\FrameworkBundle\FrameworkBundle::class => ['all' => true],
-    Symfony\Bundle\WebServerBundle\WebServerBundle::class => ['dev' => true],
-    Doctrine\Bundle\DoctrineCacheBundle\DoctrineCacheBundle::class => ['all' => true],
     Doctrine\Bundle\DoctrineBundle\DoctrineBundle::class => ['all' => true],
     Doctrine\Bundle\FixturesBundle\DoctrineFixturesBundle::class => ['dev' => true, 'test' => true],
     Doctrine\Bundle\MigrationsBundle\DoctrineMigrationsBundle::class => ['all' => true],