Fix link to instructions

The link to the installation and usage instructions does not work. This fixes it.

The structure of this example file was quite confusing. Most of these
values are not required and should be denoted as such. Jinja notiation
to denote re-used Pillar values was also a bad and confusing choice.

Closes #8

Having multiple different examples in the same file was causing
confusion.

Fix typo

Fixes #22

Add vhost config file extension for RedHat-based distributions

added initial FreeBSD support

Removed apt from items where it is not required, also modified fcgid to include apache as it requires the apache package.

Adding mod_proxy and mod_proxy_http states

setting the remaining changes caused by the change to module.wait

States for apache-reload and apache-restart using module.wait not working

CustomLog directive takes two parameters. Introduced LogFormat variable ...

Fix wrong state path in README.rst

apache.vhost.standard --> apache.vhosts.standard

Bug fixes and upgrades