Added In Date Submitted String version for invoice submission
Deleted unnecessary tcppdf, excel and other libraries for the moment and simplicities sake.
Added in another column field because it was offset (pi)
Fixed a display auto-refresh bug
Aligned all table td rows as center (mc) may change
Now, upon updating a schedule, 'schedule_refused' automatically marked as 0, so that re-assigning the rep onto refused assignments will actually change
Applied padding to idisplay-table
Changes to formatting of column headers (invoices) - added padding too
returned $ and .00 for total due
And added new view invoice page!
Added displayStandardTableHeaders() for convenience of the programmer