Properly clean path for Windows machines which is *nix-compliant.
Properly strip drive name from clean path when sanitizing path.
Remove obsolete `normalize_options`.
Trim trailing spaces and convert tabs to spaces.
Merge pull request #2121 from XhmikosR/docs
Update history to reflect merge of #2121 [ci skip]
Merge pull request #2109 from jekyll/proper-path-cleaning
Update history to reflect merge of #2109 [ci skip]
Merge pull request #2122 from XhmikosR/whitespace
Update history to reflect merge of #2122 [ci skip]