2.2.0 to 2.2.1

Merge remote-tracking branch 'origin/feature/hhvm4.1'

fix hhvm 3.26 warnings

Merge remote-tracking branch 'origin/develop'

replace to composer.json config section

Merge remote-tracking branch 'origin/feature/hhvm3.24'

python script to shell script

Merge remote-tracking branch 'origin/develop'

Merge remote-tracking branch 'origin/develop'

Merge remote-tracking branch 'origin/develop'