Release 0.1.7

Update version to 0.1.6

Update version to 0.1.5

Removed OS X build

Added position logging to swarm example. Disabled by default. Closes b…

…itcraze#48

Update version to 0.1.2

Create version 0.1.1

Merge branch 'master' of github.com:bitcraze/crazyflie-lib-python