MODE_DIST (-s) is the same as MODE_DIST_LENVENSHTEIN (-ss) but much slower.
Drop it. Make MODE_DIST_MYERS (-sss, faster than MODE_DIST_LENVENSHTEIN) take its place (-s).
The original comment was incorrect (-s is not Eugene W. Myer's algorithm). It is correct now.
Co-authored-by: eagleoflqj and Maskray
* Disable colors on Windows because terminal looks bad otherwise
* Use environment on Windows to set PATH and make sure unit tests use
the compiled libraries and not the installed ones
* Define ssize_t on Windows as well by using SSIZE_T
Update test_analysis_block.c
Update test_intervaltree.c
Update test_unum.c
