Update version to 0.12.0 (#311)

Update version to 0.11.0 (#295)

* Update version

* Update version in docs

Version 0.10.0 (#267)

Version 0.9.0

Version 0.8 (#253)

* Version 0.8

* Remove misleading output line

* Test with Elixir 1.6

* Invalidate CI dependency cache when environment changes

Update version numbers for 0.7.0 release (#210)

Add `download/3`, `config/1` to DSL. Add support for `REPLACE_OS_VARS…

…`. Fix bugs related to SSH unicode output and `remote/3` output.

Contains breaking changes! Improve documentation and add robust worki…

…ng directory support to `remote`.

Support for multiple bootleg enivornments, and improvements to build …

…task.

Add upload DSL verb, bootleg.invoke Mix task, and filtering hosts by …

…attributes.