Binary deployment with node-pre-gyp

add rpath linker option in binding.gyp when --sqlite option is used

fixes #108

issue is that we perform auto-detection of the parameter style based on
the type of the first parameter. if it is an object, we switch to the
object syntax. however, buffers are also objects, so we have to special
case them too like RegExp and Date.

Conflicts:
	package.json