Adds test function to clarify the difference between allocations_by_reservation and _target_allocations
Fixes pending reservations not showing up in the print view.
Moves reservation links to a separate macro and use that in the monthly report, ensuring that the links are the same everywhere
Ensures that print links are openend in a spearate tab/window.
Updates history.
Merge pull request #107 from seantis/issue_33

Adds print link to the monthly report.