B-58092 package refactor dd service, improved unit tests, added dd filter func tests
B-58092 updating dist datastore based on pull request feedback
B58092 Datastore service changes based on code review feedback
Merge pull request #817 from rackerlabs/B58092_round2

B58092 round2
B58092 increased test coverage of datastore filter and service
B-58092 updating test names and todo file with pull request feedback
B-58092 test tweaks based on pull request feedback
B58092 changed DistDatastoreUnAuthFilterTest to less flaky
CODE CLEANUP: creating filters module under components and moving all filters there
CODE CLEANUP: reverting unintended change in schema file
Made changes to the Rate Limiting chapter.
Minor changes to Rate Limiting chapter.
Added draft Header Translation, Filter Order, and Available
Added links to Filter Ordering chapter
Updated Decision Flow AuthZ figure.
Renee's unstaged changes and conflict resolutions from rebase
Removing spurious paragraph
Removing unneeded db: prefixes.
Added links and changed POM to build only main book.
Started Content Normalization chapter and changed 1 sent in RL chapter.