Closing Date, tag filter Bugfix

Implemented Closing Date on the backend for reporting
Fixed a bug involving the conjunction of tag filtering with the ?all switch.
Moved Add Task button to top

This makes the tasklist easier to use when the list gets long enough to scroll.
Reporting

Added very basic reporting. Currently this includes only a list of what was closed within a certain period. The period
is currently hardcoded to "two weeks ago to present".
Bugfix: Add Task Position

Fixed an issue with where the upper toolbar was showing up.
Reporting Charts

Added a chart to reports showing tag activity per day.
Reports, Color fix

Added new Time Clearance report.
Lightened the "light" color so it shows up better on inverted lozenges.