Compatibility with 0.11.3+ on OSX.

• Node 0.11.3 has a major change in v8::FunctionTemplate that breaks the current code with 0.11.3+ on OS X. Even though this branch of Node is still considered unstable, there is already a fix for OS X since it is obviously coming in 0.12.x. Linux doesn't seem to have the new v8::FunctionTemplate yet, for what reason I'm not quite sure of. In either case, there will be a fix available with this new code once it breaks on Linux. This has also not been tested on Windows or Unix yet, so it has been blocked on those platforms as well. Only OS X will use the newest code until there is a report about it breaking on Linux, Unix, or Windows.
• The build no longer depends on a Makefile, but instead handles everything in binding.gyp. This ensures compatibility with Windows without having to install MinGW for GCC or anything of that nature.
• Add more certificates for testing.
• General code clean up.