Bump role to v0.4.1

Bump role to v0.4

Add basic auth support

Completely re-write role and support Ansible 2.0+

Merge pull request nickjj#5 from unboxed/www_redirect_use_base_domain

[www_redirect_use_base_domain] Redirect to www.{{nginx_base_domain}

Merge pull request nickjj#3 from unboxed/nginx_configure_ppa

Nginx configure ppa

Merge pull request nickjj#1 from unboxed/master

[New "nginx_ssl_manage_certs" variable]

Fix a bug that caused nginx not to restart when changed

Change nginx_extra_locations to accept a text block

Set the apt cache time as a variable