Docs: typos, wording, rewriting, add a Makefile
Convert MonolithData to DRF (bug 910575)
Merge pull request #1464 from magopian/more-docs-improvements

various small docs improvements, typos, fixes, add a Makefile
DE and ES have carrier billing at all levels
Merge pull request #1499 from washort/910575

Convert MonolithData to DRF (bug 910575)
split iarc content descriptors by body in api (bug 931947)
add missing generic iarc content descriptors