Fix v0.5.0 bugs

[vinayak-mehta]

Fixes #105, #192, and #215.

[codecov-io]

Codecov Report

Merging #227 into master will decrease coverage by 0.14%.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##           master     #227      +/-   ##
==========================================
- Coverage   88.08%   87.94%   -0.15%     
==========================================
  Files          13       13              
  Lines        1410     1410              
  Branches      333      333              
==========================================
- Hits         1242     1240       -2     
  Misses        114      114              
- Partials       54       56       +2

Impacted Files	Coverage Δ
camelot/utils.py	81.25% <100%> (ø)	⬆️
camelot/parsers/stream.py	91.09% <75%> (-0.53%)	⬇️
camelot/parsers/lattice.py	89.11% <75%> (-0.52%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 40217be...d83d5fa. Read the comment docs.