Support php_admin_(flag|value)s

Add support for php_admin_flags and php_admin_values to both
<VirtualHost> and directory context. Basic documentation & tests
for both cases included.

This Fixes #463
Merge pull request #481 from igalic/php_admin

Support php_admin_(flag|value)s
update CONTRIBUTING with information about beaker

beaker has replaced our rspec-system tests. These new tests are run
differently. Before messing with our Rakefile, a good start is to just
document it.
Merge pull request #533 from igalic/contributing-beaker

update CONTRIBUTING with information about beaker
Support environment variable control for CustomLog
Merge pull request #527 from chieping/add-access-log-option

Support environment variable control for CustomLog
Fix rspec-puppet deprecation warnings

This commit changes all the spec tests to use contain_class
instead of include_class which is deprecated.
Merge pull request #534 from blkperl/spec_dep_warns

Fix rspec-puppet deprecation warnings
rspec-puppet's .nodeset.yml is now deprecated
Merge pull request #537 from igalic/contributing-beaker

rspec-puppet's .nodeset.yml is now deprecated
Added support for mod_include
Merge pull request #543 from psyco01/include

Added support for mod_include
Update init.pp

Fixed to all module to be used with Amazon Linux (fork of RHEL/CentOS)

facter osfamily operatingsystem
operatingsystem => Amazon
osfamily => Linux
Merge pull request #544 from mattboston/patch-1

Update init.pp to allow for support for Amazon Linux