Merge pull request IQSS#6552 from IQSS/develop

Merge v4.19 into master

Merge pull request IQSS#6390 from IQSS/develop

KC_Merge_4_18_1

Merge pull request IQSS#6369 from IQSS/develop

v4.18

Merge pull request IQSS#6254 from IQSS/develop

v4.17

Merge pull request IQSS#6129 from IQSS/develop

v4.16

Merge pull request IQSS#6010 from IQSS/develop

v4.15.1

Merge pull request IQSS#5950 from IQSS/develop

Update version to v4.15 for real this time.

Merge pull request IQSS#5832 from IQSS/develop

v4.14

Merge pull request IQSS#5773 from IQSS/develop

v4.13 fixed

Merge pull request IQSS#5701 from IQSS/develop

v4.12