Ignore \r (CR) line ending in input

NOTE: This is needed for the occasional report that has been copied to and sent
      from a Windows machine.
Minor DRY optimization
Take __PAGEZERO into account when determining symbol addresses
Support Thumb IMP addresses (i.e. non-even addresses)
Renamed MethodInfo ivar (impAddr -> address)
Fixed support for compiling with Xcode toolchain
Embed declarations needed for for bz2 support

NOTE: Older SDKs contain libbz2.dylib, but not bzlib.h.