The network communication headers were moved to the include directory of the HAL and their copies were removed from wpilibc. Also, symModuleLink.h was removed because the function which it prototypes hasn't been used in WPILib since the roboRIO switch.
Subsections are alphabetized according to lexographic ordering. Also, HAL includes were moved from headers to source files where possible. This change may cause user code which uses HAL functionality and does not include the relevant HAL header (since it may have been provided by another WPILib header) to fail to compile.
CANJaguar is the only motor controller using sync groups, so that feature doesn't belong in an interface used by all motor controllers. If teams want to use sync groups, they should cast to the appropriate motor controller type themselves.
Rename the following folders:
hal/lib/Athena -> hal/lib/athena
hal/lib/Desktop -> hal/lib/sim
hal/lib/Shared -> hal/lib/shared
wpilibc/Athena -> wpilibc/athena
wpilibc/simulation -> wpilibc/sim
Windows users may need to run gradlew clean after updating.
