class Inference is a polymorphic base class and needs a virtual destructor.
Merge pull request #20 from bekaus/master

class Inference is a polymorphic base class and needs a virtual destructor.
fixed minor bug in sparsemarray
started to merge matlab-python into RC2.1
added FINDSphinx.cmake
added shared libs to  external lib (as MaxFlow,Trws,MrfLib..)
added reserve to random_acces_set
added functions to reserve space for functions and factors
minor refactoring
minor changes
removed recognition.cxx from examples
removed a nothing-doing test of sparsemarray/sparsefunction
fixed wrong template bug in libdai's tree_expectation_propagation
fixed wrong class name in pyDD-Subgradient
fixed wrong class name in pyDD-Subgradient
added missing ACC to graphcut in pyDualDec.
addFactor can now also be used with a Iterator of the type InputIterator
added dependencies to build-system of python unit test
added tiny python part to README.md
clean cmake lists of python wrapper