* merge master - allow to upload twig invoice templates via UI
* support adding existing teams with same name
* permissions cannot be set right after role was created - fixes#3777
* allow to deactivate unique customer number validation - fixes#3762
* invalid message when trying to edit locked or exported timesheets in calendar - fixes#3766
* updated icons and manifest - fixes#3761
* set default times for daterange objects
* allow to show order and order by fields
* move search to modal
* more options for page size
* save export visibility in cookie
* 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
