Update documentation for 1.0.0-rc3 release.

Add kiji-schema 1.0.0-rc3 API docs
Add kiji-delegation 1.0.0-rc3 API docs
Add annotations 1.0.0-rc3 API docs
Add kiji-schema 1.0.0-rc3 user guide
  (1.0.0-rc2 user guide with version number substituted)
Add new API docs to apidocs index
Add new user guide to user guides index
Change config file to point to new "latest" user guide
Change drop-down headers to use new latest links
Change rc2 to rc3 throughout tutorial