Changes in openfst 1.5.2 and 1.5.3:

• FarReader's GetFst method now returns a pointer
• Fixed FSTERROR macro
• Fixed build flags for dlopen
• Consolidated Python extension into single module
• Adds optional minimization of non-deterministic FSTs
• Python add_arc now takes an Arc object
• Mutation methods of the Python Fst object can now be chained
• Scripting API and Python weight objects now support semiring arithmetic

Changes in opengrm-ngram 1.3.0:

• Templated Arc to provide new hist-arc counting, supporting fractional count based Katz backoff models.
• Updated error handling.
• Updated code to better conform to Google C++ guidelines.
• Added Bayesian model merging.
• Some re-factoring of functions to improve efficiency, particularly those for distributed model building, such as ngram-complete and ngram-split.
• Updated unit tests to run more quickly and to be less bash-specific.

sphinxtrain was rebuilt for the updated openfst and opengrm-ngram libraries.