1.0.0.606-607

Option to select which value to search for in a PDF when using Tracking.
Bug fix: Calendar not updating on the first tab when initially started
Minor changes to the Calendar
Font change and minor layout change to chat messages
Bug fix: Reopening certificates, caused the measurement uncertainty and calibration data to disappear.
Urgent notification icon added to the task cards. This works in priority order: Urgent->Flag->High Priority->Overdue->Normal->Low. Click the urgent icon to mark as completed. Click again to clear icon completely.