Allow specifying "ensure" parameter in apache::mod::php
This fixes issue #326
adopt a more stable proxy configuration

adopt proxy configuration as documented by @niq (Nick Kew)

   http://www.apachetutor.org/admin/reverseproxies documents the

This pattern is more resilient to shaky redirects from the backend
This commit fixes #300.
apache::mod::expires class for easy including
Add conditional <IfModule> directive to alias_module template.
Add 'Timeout' core directive.
Merge pull request #367 from pataquets/add-timeout-parameter

Add 'Timeout' core directive.
Merge pull request #366 from pataquets/add-ifmodule-to-alias

Add conditional <IfModule> directive to alias_module template.
Convert sendfile param to string from bool.

Currently, one would assume that since the default is false, setting `sendfile
=> true` would cause the option to be enabled in httpd.conf, but instead it
writes `sendfile true` which is incorrect.  This makes the usage consistant
with commit a82af5595e1e51961903873b6171bd5e08857d60.  Includes rspec
tests and input validation.
Merge pull request #365 from razorsedge/sendfile

Convert sendfile param to string from bool.
Merge pull request #306 from igalic/proxy_stable

adopt a more stable proxy configuration
Fix invalid variable name in itk mod
Merge pull request #362 from blkperl/fix_invalid_attrs

Fix invalid variable name in itk mod
Merge pull request #338 from MasonM/module_ensure

Allow specifying "ensure" parameter in apache::mod::php
Merge pull request #352 from 3dna/apache_mod_expires

apache::mod::expires class for easy including
Rebase on puppetlabs-apache