Merge pull request #912 from karlnapf/master

fix swig-R clash
fix doxygen doc
added forgotten include
fix: checking python's version for buffer protocol
Merge pull request #913 from gsomix/fixes

Small pack of fixes: buffer protocol and compiling
blacklist director based examples and require new data version
Big update for tapkee

- Relicensed code to BSD
- Better includes arrangement
- Doc improvements
Added tapkee license file
Removed unstable from MC LR
removed unstable warning and added some proper assertion messages
changed training data to be (probably) linearly seperable to avoid warnings
changed training data to be (probably) linearly seperable to avoid warnings
fixed copy/paste error