Initial start of modelframe work.  If it works, will be merged into master later.

Signed-off-by: AJ Rossini <blindglobe@gmail.com>
clean up for LIFT based testing, start of code for CLUNIT based testing.

Signed-off-by: AJ Rossini <blindglobe@gmail.com>
maybe last bit of dataframe work -- see modelframe for the new stuff.

Signed-off-by: AJ Rossini <blindglobe@gmail.com>
modified to support clunit.

Signed-off-by: AJ Rossini <blindglobe@gmail.com>
new probability generators D/L-d from the network.

Signed-off-by: AJ Rossini <blindglobe@gmail.com>