add support for relative `root dir`
Merge pull request #1 from coderhaoxin/add-support-for-relative-root-dir

add support for relative `root dir`
0.5.0
Update index.js
Merge pull request #4 from KevinMartin/patch-1

Update index.js
Bump 0.6.0
upgrade swig to 1.4.2
add exposed swig test case
add exposed swig test case