minor optimizations
compiles but still calls fcntl64
updated to expect backwards symbol table
reduce output on syncing testnet
changing to gcc-only build for Linux
fix DOCKER_IMAGE
remove docker_build_image
optimizing the wallet to better handle claimname calls
post-merge fixes
fix windows test run
unit test round 2
attempting to fix ccache use on darwin
made ccache optional, no longer pulls clang on darwin build
fixing darwin build from Dockerfile
fixed missing nproc on OSX
updated readme to include regtest example, build examples
fix QT unit tests
made -j get passed down, added build.sh
