Merge branch 'release/0.6.1'
Merge branch 'release/0.6.2'
Merge branch 'release/0.6.3'
remove const version
Merge branch 'hotfix/remove-version' into develop
use composer autoloader for tests
tests folder structure
remove unused files
minimum-stability stable
remove travis unused section
Merge branch 'feature/test-namespace' into develop