templates/vhost/_proxy.erb misconfigures ProxyPassReverse

See here:
http://httpd.apache.org/docs/2.2/mod/mod_proxy.html#proxypassreverse

When enclosing ProxyPassReverse in a <Location> directive, you drop the
*first* argument, as it will be taken from the enclosing Location. The
second argument is the URL to which we are attempting to proxy.

Very simple change. Tested in my environment, works.
Added apache24 support
Fix to lots of tests to work with apache24
Apache24 on Ubuntu SSL to use default mutex

Changed the ssl module to use default for the new Mutex with Apache 2.4
on Ubuntu
Merge pull request #552 from smitherz82/apache24_support

Apache2.4 support
Ensure socache_shmcb is enabled on all Apache 2.4 OSes

The SSLSessionCache option is specified as socache_shmcb, so the module must
be enabled.
Merge pull request #612 from domcleal/f19-ssl

Ensure socache_shmcb is enabled on all Apache 2.4 OSes
Merge branch 'master' of https://github.com/jrwilk01/puppetlabs-apache into proxy-pass-reverse
fix simple linting errors
disable lint check for "single quoted variables"

Previously we were checking (and failing every linting run) because
the values for Debian configurations uses a syntax that looks like
Puppet variables.  This is regrettable since it's a valuable check but
the fix will probably require changing how the conf variables are
handled which is out of the scope of this PR.
use a .puppet-lint.rc for usage outside of rake tasks
Update rspec definitions for the ProxyPassReverse location fix.
Add WSGIApplicationGroup and WSGIImportScript directives
Add WSGIApplicationGroup & WSGIImportScript tests.
Merge pull request #606 from bodgit/wsgi

Add WSGIApplicationGroup and WSGIImportScript directives
Merge pull request #614 from justinstoller/lint_fixes

Lint fixes
The vagrant user doesn't exist on non-vagrant machines
Merge pull request #616 from hunner/fix_vagrant_tests

The vagrant user doesn't exist on non-vagrant machines
Allow custom gemsource
Merge pull request #617 from hunner/dynamic_gemsource

Allow custom gemsource