add format to dsopts and scatter method to SAS Table object (#56)
add format to dsopts and scatter method to SAS Table object (#56)

* add methods for phreg, ttest, and factor

add the new statements to sasproccommons

* add tests for phreg, ttest, and factor

* Add function to determine if python running in notebook

* load sasmagic by default in notebook context

* load sas_magic in notebook

* add format to dsopts and scatter method for SAS data object

* fix minor issues with format dsopts

Signed-off-by: Jared Dean <beb6244895749c9b35b71d662324b9cf5c1f9e7c@sas.com>

* fix minor issues with format dsopts exception handling

Signed-off-by: Jared Dean <beb6244895749c9b35b71d662324b9cf5c1f9e7c@sas.com>

jld23/saspy,jld23/saspy