Fix Transcription w/ Constrained Nonlinear Measures

[pulsipher]

Fixes #317.

[codecov[bot]]

Codecov Report

Merging #318 (2f62088) into master (ba79f48) will decrease coverage by 0.03%. Report is 1 commits behind head on master. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #318      +/-   ##
==========================================
- Coverage   99.77%   99.74%   -0.03%     
==========================================
  Files          36       36              
  Lines        7103     7107       +4     
==========================================
+ Hits         7087     7089       +2     
- Misses         16       18       +2     

Files Changed	Coverage Δ
src/TranscriptionOpt/transcribe.jl	99.73% <100.00%> (+<0.01%)	:arrow_up:

... and 1 file with indirect coverage changes

[pulsipher]

Needs #319 for documentation to pass the tests.