[build][fix] use grep -E instead -P to get google maps version number. perl style regex are not available in mountain lion anymore
[fix] use SPI2 for booz imu on lisa boards
[fix][spi] fix slave selection
[spi] add spi_init_slaves back and fix makefile for b2
[spi][stm32] gpio init for slave select now done in spi_init_slaves
better naming for the defines: SPI_SELECT_SLAVEx instead of SPI_SLAVEx
added SELECT_SLAVE4 for PC12 for ms2100 mag on booz imu and lisa/l

The configuration of the slave select outputs has to be improved,
first step would be to define it in the board files, like for lpc.
[stm32] booz_imu: set correct SPI devices and slaves to use
imu_aspirin2: set SPI device and slave select to use for the mpu6000
remove obsolete sim files for aspirin2 imu
aspirin2 should now be usable on lpc as well...
[build system] add lib-pprz rules/dependencies, so they get (re)built before they are needed
[stm32] configurable SPI device and SS for w5100 datalink
[boards] cleanup obsolete USE_OPENCM3 defines
Updated locm3 to get CAN GPIO fixes.
[stm32][can] Ported the can driver to locm3. Added a simple test firmware.
[stm32][can] Added comment about the bitrate calculation to the can driver. Increased default CAN driver bitrate to 1MBit.
[test][can][stm32] Increased the message speed to 1024/s. Displaying the high nibble of the first byte on LEDs.
[test] Added can_test to the list of lisa/m 2 tests.
[stm32][can] Discarding const qualifier to the can_transmit call. Should be fixed in libopencm3.
[abi] add sender id and broadcast address to ABI
[autopilot] dig some old code to generate autopilots