use .md instead
Merge pull request #142 from kirelagin/fixroot

Determine DOTFILES_ROOT correctly
Merge pull request #145 from kirelagin/fix_root

Fix bootstraping broken in #142
Merge pull request #144 from kirelagin/syntax

Minor tweaks
Merge pull request #148 from kirelagin/enhance

Part of #147
Merge pull request #154 from sibartlett/skip-symlink

Skip symlink - if the existing symlink links to the same destination