Added support for relative paths in imports

File paths in imports may be relative. Previously node-kit was failing on these. This adds support for use of relative paths in imports specified both with and without underscore-prefixed partial syntax.
Merge branch 'master' into patch-1
Failing Test for .. relative paths
Merge branch 'master' into patch-1
Merge pull request #6 from aral/patch-1

Added support for relative paths in imports
Version 0.6.0