package: add the "repository" section to the package.json file

so that `npm docs eson` works as expected
Merge pull request #8 from TooTallNate/patch-1

package: add the "repository" section to the package.json file
add .json extname to paths that omit it. Closes #10
Release 0.4.0
assume underbar suffix for env plugin prefix
Merge pull request #11 from gjohnson/master

assume underbar suffix for env prefix
Release 0.4.1
Add globbing files feature to include plugin