Persist title and data (is this a good idea?)

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Ensure _data matches original data.

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Graph tuning 001

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge branch 'PersistData' into gh-pages
Merge branch 'GraphTune001' into gh-pages