Open Tax Solver Code

SVN source-code repository check-in for improved result-rounding, now controlable from OTS GUI, or directly from individual files, which only affects PDF Form fill-outs, and works uniformly for all forms. In Fed Form 1040, added switch for Qualified Charitable Distributions (QCD) after line 4b. Fixed Fed-1040 tax-breaakpoint for Head-of-Household. In NY State Form, added special limit for MFJ on line 29. Fixes to Sched-SE, adds Minister checkbox, and now prints line 3.