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.
Merge branch 'master' of https://github.com/jrwilk01/puppetlabs-apache into proxy-pass-reverse
Update rspec definitions for the ProxyPassReverse location fix.
Replace mutating hashes with merge() for Puppet 3.5
Merge pull request #625 from domcleal/625-mutating-hashes

Array/Hash mutating operations deprecated
Updates README

Adds sections for new parameters, classes, and defined types not previously documented. Updates sections for parameters, classes, defined types, testing, and examples to reflect ongoing changes to the module. Edits for punctuation, spelling, grammar, clarity, consistency, formatting, and code correctness. Updates links to external documentation to point to the most recent and most pertinent docs.
Final edits to fix merge conflicts
Fix replace/replacements
Merge pull request #632 from laurenrother/readme

Update README
Change test location to be under /tmp/.
Merge pull request #633 from apenney/change-test-location

Change test location to be under /tmp/.
Add rewrite_base functionality to rewrites

Previously rewrite_base was a parameter to vhost, but was removed
incorrectly. When rewrites was created to replace rewrite_* parameters,
rewrite_base was forgotten. This adds back the deprecated rewrite_base
parameter and adds the rewrite_base support to the rewrites parameter.
Merge pull request #631 from hunner/fix_rewrite_base

Add rewrite_base functionality to rewrites
Document apache::apache_version
Merge pull request #641 from hunner/doc_apache_version

Document apache::apache_version
Merge pull request #613 from orionhealth/proxy-pass-reverse-fix

Proxy pass reverse fix