(with one small bugfix in bgen/bgen/scantools.py)
This replaces string module functions with string methods
for the stuff in the Tools directory. Several uses of
string.letters etc. are still remaining.
\t\t\t\t\treal code
##\t\t\t\t\tunused code
\t\t\t\t\treal code
via untabifying and shifting the real code left. Semantically the
same but made the intent of the commented-out-in-column-0 unused code
unclear. The exact same unused code appears to have gotten copied from
file to file over the years.
