- Allows the radio main application to start correctly when coming from an app in RAM
- Refactoring of the `UNEXPECTED_SHUTDOWN()` process
- Saves the RTC battery as BACKUP RAM is not needed on normal shutdown
- On PWR OFF on an ALERT, the radio won't show the next alert before shutting down
- Bootloader flashable through the SD Manager
* Ignore deprecated register warning for the the STM include files
Ignore the warning with the use of #pragma which is not elegant but otherwise we would have to change the vendor files
* Remove usage of register in C/C++ files.
Modern compilers ignore it anyway and C++11 actually deprecates it. Removing also removes a number of clang warnings about this
