Merge pull request #87 from Tim55667757/develop

release-1.5 finalization

set version to 1.4

Merge pull request #61 from Tim55667757/develop

Prepare for release 1.3

Merge pull request #54 from Tim55667757/develop

Milestone 2 finished for release-1.2

Merge pull request #41

build release 1.1

#1 add 1st version to changelogs