TauLabs/TauLabs — pull request #1247 by lilvinz (2014-09-05 18:13:38+00:00)
Title: I2c fixes

* depends on #1245
* uses pios_mutex instead of semaphore for locking
* fixes premature unlock in PIOS_I2C_Transfer()
* fixes excess irq disable calls in f3 driver
* fixes f3 diagnostics buffer mismatch