Add Travis-ci.org support

Ability to run spec tests through travis
Minor refactor

Fix style, documentation, and logic, without changing the nature of the
code.
Refactor module and fix templates
Merge pull request #3 from jwennerberg/make_vas_awesome

Working VAS module
Add support for preload-nested-memberships
Merge pull request #5 from jwennerberg/nested_memberships

Add support for preload-nested-memberships
Add keytab_source parameter

A keytab file source will be used until there's a process for getting
keytab files generated and packaged centrally.
Merge pull request #6 from jwennerberg/keytab_source

Add keytab_source parameter
readme fix
Merge pull request #7 from jwennerberg/readme_fix

readme fix
Add ability to specify interval-update value in vas.conf

This patch lets you specify the interval-update in the [vasd] section of
the vas.conf. The default is 600 (10 minutes) which is taken from the
man page.
Add ability to specify options for [libvas] in vas.conf

This adds the ability to specify the following and uses the default
values specified in the vas.conf man page.
 * use-dns-srv
 * use-tcp-only
 * auth-helper-timeout
Merge pull request #9 from ghoneycutt/add_libvas_options_to_vas_conf

Add libvas options to vas conf
Release 0.2.0

Ability to specify more values in [vasd] and [libvas] sections of
vas.conf.