v1.56.00

Email notification : you can now notify people before or after a task with a delay
Several security fixes 
API new function : GET statutes
Various improvments on design and code 
Delete task before or after : now also delete the task you are on (only the previous/following before fix)
Small changes on ICAL interface
Fix on sticky planning position on the page
Better hash algorithm applied to passwords, compliant with existing ones
Fixed small issue on menus
Dropdown in forms will not accept anymore to fill free text (make errors)
Planning display button moved on first cell of the planning
Fix on project chart
Removed obsolete agenda view 
Manage browser zoom (was causing bad display)
Fix on filter buttons (above the plannig) on mobile, content is now well displayed in all cases
Fix on mysql database setup 
Deactivated blinking informations on detailed view (performances issue) 
Improved tasks drag and drop (performances issue when a lot of tasks in the planning) 
Fix on PDF export 
Fix on ROI calculation
Bugfix for A0 format on PDF export

