WIP improve ansible provisioner
Merge branch 'develop' of git://github.com/datasift/storyplayer into develop
Fix: support more complex Ansible inventories correctly
Version bump: bug-fix release
Merge branch 'release/1.5.2'
Merge tag '1.5.2' into develop

v1.5.2

Some useful bugs squashed!

- Fix: support complex Ansible inventories and ansible.cfg files
- Fix: custom Prose namespaces now matches the documentation (thanks Keith Pope - https://github.com/muteor)
- Fix: $st->usingHttp()->post() now sends the body for non-form posts (thanks Courtney Robinson - https://github.com/zcourts)
- Fix: detect network interfaces on fresh Ubuntu 13.10 installs (thanks Jon Parish - https://github.com/jonparish)
Merge branch 'develop' into feature/output-plugins

Conflicts:
	src/bin/storyplayer
Merge from develop