Assignment reports fixed

The assignment report was asking for a variable that was not set within the ProjectAssign dialog, meaning, if you didn't run ProjectDocs first, you couldn't get a ProjectAssign report.
I fixed that, and allowed for the user to compare the number of translation units assigned to the providers, to the total number of translation units calculated in ProjectDocs.
(If these numbers are not the same, it had better be that the ProjectDocs number is larger, and because the user him/herself is translating the remainder of the translation units. If the Assigned number of translation units is greater than the number of units to be charged for in ProjectDocs, there's a problem...You've assigned more words than you are selling. not good).
GroOvy.
Everything is now working as it should.

Now, we need to add more features, like user control of the number of document, expense, charge and provider fields, direct printing, save/re-open a project, and an embedded calculator.