some small improvements and fix import errors
Merge branch 'v5-stable' into v7-stable

Conflicts:
	source/configuration/modules/imudp.rst
	source/configuration/modules/imuxsock.rst
	source/configuration/modules/omprog.rst
omfile: improve formatting & content
fix import problems and improve navigation
Merge branch 'v7-stable' into v8-stable

Conflicts:
	source/configuration/modules/imuxsock.rst