Fix sm--package-install

This fixes automatic package downloading/installing bugs happening with
latest emacs.
Merge branch 'master' of github.com:laynor/smotitah

Conflicts:
	smotitah.el
fix issue #5.
Some ^L sectioning.
Make smotitah dirs customizable & :type them.
Define a `smotitah` group for Customize

Thus resolving some compilation warnings:

    smotitah.el:270:1:Warning: defcustom for `sm-base-directory' fails
    to specify containing group
    smotitah.el:275:1:Warning: defcustom for `sm--profiles-dir' fails to
    specify containing group
    smotitah.el:279:1:Warning: defcustom for `sm--modules-dir' fails to
    specify containing group
    smotitah.el:283:1:Warning: defcustom for `sm--packages-dir' fails to
    specify containing group
    smotitah.el:290:1:Warning: defcustom for `sm--template-dir' fails to
    specify containing group
Add missing docstring to `sm--template-dir`.