Fix forkmydots doc; minor edits to vimrc.
forkmydots: Major bugfix/feature implementation.

 * Fix bug where setting origin on the newly-created remote
   repository led to an ssh:// protocol being used when remote repo potentially
   does not have access to the remote repository. Instead, parse current user's
   dotfiles' origin to determine host and path components in order to compose an
   http:// (read-only, unauthenticated) protocol remote.
 * Also fix adding the new remote as a remote on the current repository.
 * Use git bundle instead of manually copying repo file-by-file. duh.
 * Add stub for remote_clone_dots which will run a command over ssh to clone a
   public read-only version of the current user's dotfiles from the current
   user's dotfiles' origin.
 * Also remove debug "set +/-x" statements.