Bump to v1.12

Organise changelog into better sections for v1.12

Bump version number - v1.11 release

Prep for v1.10.1 release

Bump MultiQC to version 1.10

Version 1.9 release

Version number update for 1.8 release

MultiQC v1.7 release

MultiQC version 1.6 release

Bump version to v1.5

Version 1.4 release