format for sequence_segmenter objects.

and cross_validate_sequence_segmenter()

used by the svm_c_linear_trainer so that the epsilon value is not implicitly
scaled by the C values given by the user.  This should make this object
slightly easier to use.

to avoid a run time error in gcc 4.7.

--HG--
rename : tools/python/src/decision_funcions.cpp => tools/python/src/decision_functions.cpp

avoids a runtime linking error bug in the MKL that happens when you make
a shared library and try to use it from python.

transform.