On Windows.
Commits squashed from first to be committed to most recent:
* fix subdir not correct when path using `\`
* fix slice by variable value not supported in vim 7.3
* remove last '\' from path in CustomWiki2HTML
* fix CSS path in CustomWiki2HTML wrong
* remove unused confirm CustomWiki2HTML
* use ==# rather than == in shellescape html.vim
* remove "FIXME this can terminate in the middle of a path component! from
base#subdir
* update doc/vimwiki.txt
* update contributor to doc/vimwiki.txt
* add comment in html#shellescape
Levi Rizki Saputra
61a6ce6686
