Tools: update to Qt 5.3.2
Merge pull request #1313 from peabody124/qt_5.3.2

Tools: update to Qt 5.3.2
GCS/UavObjectUtil prevent segfault when pressing cal with no board connected
Ground-Deleted unused experimental code

Code deleted:
USB_UPLOAD_TOOL
finaltest
DocumentationHelper
HIDTest

Code left on the experimental directory that don't know what to do:
PowerLog6S
SerialLogger
Merge pull request #1327 from guilhermito/calibration_segfault

Prevent segfault when pressing calibration button with no board connected
Merge pull request #1328 from guilhermito/experimental_cleaning

Delete unused experimental code
ChibiOS: Pristine import of v2.6.6
ChibiOS: fix GPIOv2 conflict with st libs GPIO_TypeDef
pios_semaphore: add ChibiOS implementation
pios_mutex: add ChibiOS implementation
pios_thread: add ChibiOS implementation
pios_queue: add ChibiOS implementation
pios_com: add support for ChibiOS
pios/common: add support for ChibiOS
GenericI2CSensor/i2c_vm: add support for ChibiOS
System: add support for ChibiOS
pios/stm32f4xx: add pios_chibios_transition_priv.h
pios/stm32f4xx: add support for ChibiOS
pios stm32f4xx: added ChibiOS IRQ prologue and epilogue macros
pios/stm32f30x: add support for ChibiOS