Partial Identification implementation
additional work on Identification
Attributes names only for the other phases and restructure differencing
Completed Identification
Add data generations for demo, remove BOM again
Signatures for Estimation, Forecast, and Diagnosis
Changed Identification and Difference to support dataset of model specifications.
Partial implementation for Diagnosis and Forecast.  Restructure for common definitions.
Merge co-efficients
Restructure merge co-efficients for Forecast
Continued Diagnosis, added PROCESS() function
Restructure to support common definitions for Forecast and Diagnosis
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master' into arima/initial
Completed Diagnosis and Forecast, started demo code

Signed-off-by: johnholt <john.d.holt@lexisnexis.com>
Fix errors in Autocorrelation and Partial Autocorrelation functions; improve test generation
New Identification demo, improve series generation
Merge remote-tracking branch 'upstream/master'
Attributes names only for the other phases and restructure differencing
Completed Identification