We no longer need to force -gstrict-dwarf because MPLAB X can now handle the extended debug information
Enable -fvar-tracking by default when -fframe-base-loclist is also enabled. Also, don't use dwarf_strict when we have multiple function sections. We need to give .debug_loc and .debug_ranges an appropriate base address.
Remove warning when the device resource version does not match the compiler version. The resource versions are based on XC32, while the compiler version is based on the chipKIT toolchain