Silx-Kit/Pyfai: Pyfai V0.14.2

Bug fixes: Fix seg-fault with manylinux1 wheels, in fastcrc module (thanks Thomas) Fix Qt4-Qt5 compatibility (thanks Vadim) Easier to understand geometry transformation (thanks Jon) Lower memory consumption, better cache management  Unified debian packaging working for 6->9 New detector: Mythen & CirPad (thanks Fred) Clean up debug code which avoid to use pyFAI-calib2 pyFAI-calib2 now expect fabio >= 0.5 Fix issue with metadata saving in 1d Fix performance regression with pyopencl >2015.2 (Thanks Andreas) pyFAI saxs and waxs scripts guess now the binning of the detector (thanks Fred).