proper artifact version

Merge fixes for devicehive#129, devicehive#119, devicehive#109, and o…

…thers.

Merge pull request devicehive#115 from devicehive/hotfix

Bug fixes

Merge pull request devicehive#111 from devicehive/hotfix

Hotfix devicehive#107, devicehive#109

Merge pull request devicehive#104 from devicehive/hotfix

Hotfix for devicehive#102

swagger spec update

Merge pull request devicehive#93 from devicehive/hotfix

NPE fix

Merge pull request devicehive#89 from devicehive/development

Release 2.0.3

Merge branch 'development'

# Conflicts:
#	.travis.yml
#	README.md

Documentation update (Kafka, ZK, Redis setup instructions provided), …

…properties name correction