implement the --flexible suite filter (aws#20)

* implement the --flexible suite filter

* fix readme usage

cleanup travis build file (aws#12)

perform exhaustive region discovery (aws#9)

* perform exhaustive region discovery

* add error msg for region detection

update travis to run license test on release tags (aws#3)

fix push-docker-images script

fix in makefile to always create build-dir

fix some cli parsing bugs and add unit test coverage (aws#2)

Initial commit