Summary comments on two tutorials.
Reinstate tutorial/ChainNER4 as ChainNERDemo, for use in giving demonstrations.
add missing case to Tensor.outer
Merge branch 'master' of git@github.com:factorie/factorie.git
TopEntry.toString: Don't throw an exception if category is null.
Merge remote-tracking branch 'upstream/master' into joint-parse
test for parser