ignore keil gui files
keil build for pca10001 eval board
    twi with shorts

    Nordic has kept the old version PPI of twi_hw_master around to be
    compatible with old hardware.

    Problem is PPI version is not compatible with BLE.

    Don't use twi_hw_master if you have old hardware.

    If you have new hardware such as nrf51422 E00, you can use twi_hw_master
    but you must uses SHORTS.
TWI harware master

twi hardware master using ble compatable SHORTS
Merge branch 'v5'