update to v0.6 of dfm
update to v0.6 of dfm

Most of the new features were already merged.  This commit brings in the
import subcommand.

Everything that is part of v0.6:
* Added import subcommand to add new files.
* dfm can now be run from outside the dotfiles repository.
* dfm can adjust permissions on install (see 'chmod' option).
* dfm can run scripts on install (see 'exec' option). (seth--)
* Allow using regular .bashrc instead of .bashrc.load.
* Better tracking of upstream dotfiles branch for fetching updates. (Nate Parsons)
* Fixed bug where multiple recursed files would create invalid symlinks. (Jeremiah Snapp)
* Recursion should now be explicitly specified.  Implied recursion is deprecated.
* Now, even the bin directory can be recursed into.

ylansegal/dotfiles,ylansegal/dotfiles,ylansegal/dotfiles