KNL-1184 minor fixes and improvements to the names of config items, forced disk to always off

git-svn-id: https://source.sakaiproject.org/svn/kernel@308161 66ffb92e-73f9-0310-93c1-f5514f145a0a
KNL-1184 fixing up the config docs

git-svn-id: https://source.sakaiproject.org/svn/kernel@308167 66ffb92e-73f9-0310-93c1-f5514f145a0a
KNL-1184 fixes for allowing invalid configs and removing log WARNs from certain cases

git-svn-id: https://source.sakaiproject.org/svn/kernel@308171 66ffb92e-73f9-0310-93c1-f5514f145a0a
KNL-1184 updated the default name of config to align with other cache configs

git-svn-id: https://source.sakaiproject.org/svn/kernel@308176 66ffb92e-73f9-0310-93c1-f5514f145a0a
KNL-1163
Provide Session (or other) serialize and deserialize object methods in Kernel API
Only the base code is provided, code for supporting tools would be separate

git-svn-id: https://source.sakaiproject.org/svn/kernel@308178 66ffb92e-73f9-0310-93c1-f5514f145a0a