- Fix issue with color formatting regular expression.
- _separators regex in spec.py could be constructed such that '^' came
first in the character matcher, e.g. '[^@#/]'. This inverts the match
and causes transient KeyErrors.
- Fixed to escape all characters in the constructed regex.
- This bug comes up in Python3 due to its more randomized hash iteration
order, but it could probably also happen in a Python 2 implementation.
- also clean up variable docstrings in spec.py
e77c1a20c5