uavobjectmanager: use pios_recursive_mutex
taskmonitor: use pios_mutex, was recursive mutex before
pios_lsm303: use pios_semaphore, was mutex before
pios_mpu9150: use pios_semaphore
pios_rfm22b: use pios_semaphore
pios_hmc5983: use pios_semaphore
pios_hmc5983: fixed resource leak on allocation
pios_hmc5983: fixed resource leak on allocation
stm32f30x/pios_i2c: fixed PIOS_I2C_EV_IRQ_Handler diagnostics
stm32f30x/pios_i2c: removed unused TransferCallback api function
stm32f30x/pios_i2c: use pios_mutex for bus locking, was pios_semaphore
stm32f30x/pios_i2c: fixed event overflow by removing excess PIOS_IRQ_Disable calls
stm32f30x/pios_i2c: fixed possible data race in I2C_Transfer
stm32f4xx/pios_i2c: use pios_mutex for bus locking, was semaphore
stm32f4xx/pios_i2c: fixed possible data race in I2C_Transfer
stm32f10x/pios_i2c: use pios_mutex for busy locking, was semaphore
stm32f10x/pios_i2c: fixed possible data race in I2C_Transfer