fixing src dir crash, package.json main support

...on node_modules/.bin/src
and adding support for main defined in package.json with or without src dir
Merge branch 'src-dir' of https://github.com/soldair/leo into soldair-src-dir
Fixed packageJSON named to packageJson in all places
Merge branch 'soldair-src-dir'
Bumped npm version to 0.0.3