v1.0.7: WAS - Optional Download ( alternative to copy ) (#19)

* add compose to our molecule test image

* first try - optio to download

* update readme

* remove db2 downloads from script

* refactor db2 11.1

* remove blank line from Travis

* add line to readme

* add new vars to readme

* follow on

* update galaxy version

* update readme

* update 8.5.5 molecule to also use download

* fix download script