* bump version
* fix invisible class on labels
* fail safe removal of foreign key
* check if optional form field exists before accessing it
* silently ignore stopped timesheets
* prevent colliding parameter names
* make sure decimal duration is always rendered with two decimals
* simplify translation
* fix#2751 ANSI_QUOTES
* rename composer task
* fix billable statistic rates
* added missing translation for export
* allow to detect used query filters
* allow to set label in action buttons
* allow to reset last search from session
* migrate invoice archive to new search system
* display number of used search filters
* improved play and stop button if only one record is allowed
* stop button first in action menu
* fix skin colors
* autofocus term field in search form
* fix responsive column layout in invoice listing
* improve responsive header for small screens
* improve report visibility
* fix timesheet duration, which breaks validation
* added contributing section in README
* do not allow to change project for existing activities - fixes#2576
* bump theme version to fix FOSUserBundle dependency
* use entity color instead of inherited one - fixes#2200
* fix: display time budget in customer listing if set
* updated api methods with annotations
* do not require checkboxes for system configurations
* open dialog for duplicated timesheets
* no back links in modal pages
* remove unused service links to bountysource and gitter
* add validation for budget and time-budget fields
* display time budget if set
* remove console log
* sanitize DDE payloads
* do not show status and name in version string
* fix problem with empty end datetime in edit time
* fixed calendar creation with tags in "pre-defined tags" mode
* fix locale date format in report header
* removed un-maintained docker file
* update all packages
* fix deprecations
* only show one line descriptions for customer, projects and activities
* allow to show export column in timesheet listing
* 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
