Windows+Anaconda Installation Problems

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1. Compilation of kernels und KiFDD fails and can be fixed by
   • adding #include <cmath> at the top of the *.cpp files generated by cython. (Python on windows fault)
   • add some whitespaces in npy_1_7_deprecated_api.h of numpy. (Numpys fault, I comitted a bugfix to numpy's main repo https://github.com/numpy/numpy/commit/5fdfa413964ea9c17fbe9bc1f996e5feb60bb24d)
2. (The hashing cython extension does not work. There is an issue with the types. This causes one testcase to fail. -- SOLVED)
3. The tkagg backend does not seem to be included in Anaconda. This causes our code to result in errors. If I switch to QT4Agg, windows are not updated interactively (Matplotlib / Anaconas fault) -- WORKAROUND in current code: automatically switches to qt4agg if tkagg not available

I am pretty depressed by all the hurdles created by errors in other packages in combination with Windows and OSX...

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changed types in hashing

addresses issue #31

→ <<cset ac0b49b21805>>