updates for 3.0.0b2
updates for 3.0.0b2
fixed import of Counter (2.6 compatibility), closes #737
plot and tabulate again provide samples in sorted order, optionally the first n; support for slice range is dropped; resolves issue #723
Fixed issue with printing production probabilities: all were being reduced to one significant digit; documentation wrongly specified 1.0 to display as 1.
fixed documentation to handle the fix where repr and str were swapped
documentation fix for minor update to dependency format
fixed copyright year
Merge branch 'nltk-3.0' into develop