fix diskConfig descript w note about MANUAL needed for non-Rax servers
reverted glossary
added text to resolve Ying's comment about non-Rackspace server images
added more text about what a non-Rackspace server image is
Adjust glossary so that glossary.xml validate and build works.
more clarification
Merge pull request #642 from rackerlabs/diskConfigManual-AS-277

Disk config manual as 277
Bump txkazoo to 0.0.5

This is a cleanup release. It is also available from the public PyPI
now, so local testing is a little easier.
Merge pull request #643 from dwcramer/fixGlossary

Adjust glossary so that glossary.xml validate and build works
Merge pull request #644 from rackerlabs/bump-txkazoo-to-0.0.5

Bump txkazoo to 0.0.5