Add -g option to specife an alternate repo URL for git install type.

* Regexp changed to allow dashes in branch names.
Fix bootstrap.sh for FreeBSD 9.2
Move _SALT_ETC_DIR into config_freebsd_salt

Without this a config-only install would fail because it used the wrong etc dir on FreeBSD.
Merge pull request #268 from millerdev/develop

Fix bootstrap.sh for FreeBSD 9.2
Minimal Ubuntu installations might not have upstart installed. Fixes #226.
Version 1.5.10 is current development version.
Update changes log.
Current develop version of Salt shell's out to yum
Update changes log.
salt-bootstrap works on 13.10. Updated the readme to reflect that.
Merge pull request #272 from thedrow/patch-1

salt-bootstrap works on 13.10. Updated the readme to reflect that.
salt-bootstrap only runs with sudo. Changed README file to reflect that.
Merge pull request #273 from thedrow/patch-1

salt-bootstrap only runs with sudo. Changed README file to reflect that.
Add information that `sudo` is not necessary when running as `root`.
Switch to `note`.
Does this render better in GitHub?
Better formatting.
Some re-ordering.
Between parenthesis.
Add mint 16 eqiuvalence to Ubuntu 13.10