Switch to C++11

Refactoring

• moved boost::python -> pybind11 (7d1e1513)
• set matrix element only in constructor. (11c6f56c)
• boost::hash -> std::hash (9659e6e4)
• add factorial and string to_lower methods (7836be57)
• add defaults for ouput when no logger was found (cf51affb)
• remove logger macros (cfb29e1e)
• replace boost random by c++11 random (33a462df)
• boost bind/function -> std bind/function (b0200252)