Add scaffold for evaluation functions.
Add some error measures.
Add CE implementation.
Add scaffold for evaluation functions.

Conflicts:

	test/test.cpp
Add some error measures.
Add CE implementation.
add prototypes for crossValidation and add some forward declaration.
implement crossValidation in Evaluation.cpp
Add script for CIFAR10 benchmark.
Add some documentation.
update
setup correctly install prefix for setup.py
update cbindings for DirectStorageDataSet and libsvm loading.
python: dataset can be loaded now from libsvm parser.
python: refactor optimization classes.
Uses now a shared StoppingCriteria instance.
python: add interface to OPENANN_LOG(level, text)
add classificationHits(Learner&, DataSet&) to OpenANN's interface.
Add benchmark script for MNIST.
Merge pull request #57 from AlexanderFabisch/benchmark-scripts

Benchmark scripts
Merge branch 'evaluation' of https://github.com/Ruun/OpenANN into Ruun-evaluation

Conflicts:
	OpenANN/Evaluation.h
	src/Evaluation.cpp
	test/EvaluationTestCase.cpp
	test/test.cpp