Adafruit-circuitpython-bmp280

Re-bundling so we use the right travis tools

tannewt linted and updated travis for auto-genning mpy + bundling

**note** updated seaLevelhPa member variable to sea_level_pressure - check examples for new demo!

To use in CircuitPython, simply install the Adafruit CircuitPython bundle or the zip from here that matches the version of CircuitPython you are using.

2.0 Release with binaries for CircuitPython 2.x (note this might not work with CircuitPython 3.0+!).