settable drone_tmp
Pass drone_tmp as an instance var to the template
Merge pull request #6 from newsdev/feature/drone_tmp

Setable DRONE_TMP
Bump version to 0.3.0
Add Emeril
Bump version to 0.3.1
Fix typo in service check
Remove duplicate test.
Test `drone` exists with `hash` instead of `which`.

Using `which` to test a command exists isn't considered good practice,
for more info see:

http://bit.ly/1zw8zUX
Test `drone` and `droned` exists.

Test I removed as a duplicate had the intention of testing that both
`drone` and `droned` are installed.
Add Ubuntu 14.04 LTS support to Test Kitchen.
Fix options being passed to droned.

* Fix `droned` from starting with default options (`--port=:80`) despite
  what options were set as `droned_opts` attributes.
* Add tests to make sure `droned_opts` are actually being used.
* Simplify `.kitchen.yml`, these settings are defaults / implied.