* wrap build into a stage

* fix missing ws

* change order of stages

* add test stages, test env matrix for build stage

* move build stage to top level

* fix parsing

* fix indentation

* fix indentation

* fix indentation

* fix indentation

* change stage names

* use variables

* remove build matrix from top level

* build current develop and a specific (last known to work) version of ginkgo

* fix enviromental variables

* expand run stage

* remove OF Version 6 from CI/CD pipeline

* Create include folder

* Fix install paths

* Fix install dir for third_party ginkgo install

* fix ginkgo install dir for OF

* Revert changes

Use previous install prefix otherwise the find_package will not work properly.

* Raise minimum Cmake version

* create missing include directory

* Copy include folder

* Fix missing parentheses

* create include folder at generate step

* Fix install path of third_party ginkgo

* Let third party install handle ginkgo installation

* install in system default folder

* Install Openfoam via travis addons, cache ginkgo build

* OF is installed from extra repo

* Create missing build folder, clone OBR

* Setup travis workspaces to share data between stages

* Add test runs to pipeline

* Fix indentation

* Check content of cache

* Create cache folder if not present

* Update .travis.yml

* Don't put OBR into cache folder

* Update .travis.yml

* pip install docopt

* Fix not working line cont