Changed timer implementation for 2FSK
Implemented concurrent transmission and packet encoding (not working yet)
Wrote documentation for config.c
Implemented grouped transmission (without preamble)
When a picture was sent, the radio was kept switched on.
The detection of the image EOI did not work for the packet
transmission because the EOI detection returned the method
earlier.
Merged configuration types
Made USB and 3V switch configureable
Removed USB debugging temporarly
Adjusted camera clocking
Removed Si4464 power conversion function
Implemented I2C communication with ublox module
Fixed endless-loop bug in tracking manager
Increased cutoff voltage at which PAC1720 is used
Implemented redundant tansmission option
Moved APRS definitions to APRS related files
Renamed variables (so they get more understandable)