notes
update to latest master
replace comments with explanations
Merge branch 'master' of github.com:ged-lab/khmer into doc-release-process

Conflicts:
	doc/development.txt
Create CONTRIBUTING.md
formatting cleanup
Merge branch 'doc-release-process' of github.com:ged-lab/khmer into doc-release-process
update changelog
Merge pull request #273 from ged-lab/doc-release-process

doc contribution process