Add EL7 support to x86_64 build

Based on @smith's feedback. In order for el7 to be on the frontend, a change needs to be made in this file. 

According to Redhat, there will be no 32 bit build so only making the change to the x86_64 portion of the json file.
Ensure contents of install dir are owned by root
Merge pull request #245 from opscode/schisamo/postinstall-fixes

Ensure contents of install dir are owned by root
Initial import from `omnibus-push-jobs-client` repo

https://github.com/opscode/omnibus-push-jobs-client
Use new Omnibusisms in `libuuid`
Use new Omnibusisms in `libzmq-windows`
Use new Omnibusisms in `libzmq`
Update `opscode-pushy-client` software for Omnbius 4

We can also take this time to create a single platform-agnostic software
definition.
Update `opscode-push-jobs-client` project for Omnibus 4

We can also take this time to create a single platform-agnostic project
definition.
Update packager resources for Omnbius 4
Add push jobs client to the `README` and `.kitchen.yml`
Appbundle opscode-pushy-client
Rename `opscode-push-jobs-client` to `push-jobs-client`

The old way is a mouthful and we aren’t named opscode any longer!
Remove `embedded\bin` from MSI created PATH
Ensure component GUIDs are unique in source.wxs
Don’t set a `default_version` for path based sources
Move libzmq deps to omnibus-software
Merge pull request #244 from opscode/schisamo/push-jobs-client

Migrate push-jobs-client to omnibus-chef
test against appbundle'd gems

appbundler has a convenient gemfile.lock that corresponds to all of
the pinned gem versions we will actually run against, so use it.
Merge pull request #248 from opscode/lcg/test-appbundled-chef

test against appbundle'd gems