Add class for configuring varnish ncsa

This is only tested on ubuntu.
Merge pull request #12 from liwo/feature/varnishncsa

Add class for configuring varnish ncsa
updated README, added paragraph Development
Merge branch 'master' into develop
Merge pull request #11 from interlegis/resource_based

Resource based
Merge branch 'master' of github.com:maxchk/puppet-varnish
updating README
adding varnish repo class
fixing URL of repo class for centos
Merge pull request #13 from AppliedTrust/develop

adding varnish repo class
added Contributors to README
ignoring creation of backendselectors if there are none
tweaking syntax for ignoring backend selectors
Merge pull request #14 from AppliedTrust/develop

403 with no selectors
Merge branch 'master' of https://github.com/maxchk/puppet-varnish
Added option movedto for URL redirection
adding support for amazon linux
Merge pull request #15 from interlegis/movedto

Allow URL redirection inside Varnish
Merge pull request #16 from disassembler/develop

adding support for amazon linux
updated README