• Added Breakpad support on Linux
• Implemented fallback debug-id on Linux and Android for modules that are
  built without a build-id
• Fixes issues and added CI for more platforms/compilers, including 32-bit Linux
  and 32-bit VS2017
• Further improvements to the CMake configuration (thanks @madebr
  #168)
• Added a new SENTRY_TRANSPORT CMake option to customize the default HTTP transport