edit Makefile

* make install
* make bekobrew
* make installer
* make publish_bekobrew
* make publish_installer
bump version into 0.0.8
Merge branch 'hotfix/0.0.8'

* Closed ticket #8 (`make bekobrew`)
* Closed ticket #9 (`make installer`)
* Closed ticket #10 (make publish_bekobrew`)
* Closed ticket #11 (make publish_installer`)
* Closed ticket #12 (make install`)
* Added --develop option to installer.sh / close #13