Allow Automatic release notes in Releases

[jyejare]

Adding a support for Automatic Release notes in Github Release !

[xavt]

how do you even view the diff !!?
why even having a single line js file on such open source projects?
at least have a readable workable source file and a minifier process if that's absolutely necessary.
(more criticizing of @marvinpinto original file; I spent too long to get the diff bits of the one-line patch;)

here are some diffs, not sure how to best present it:

1. before:

   ,t=u.getInput("files",{required:!1});return

   after:

   generateReleaseNotes:JSON.parse(u.getInput("generate_release_notes",{required:!0}))},t=u.getInput("files",{required:!1});return

2. before:

   u.endGroup(),r.data.upload_url})))(n,{owner:r.repo.owner,repo:r.repo.repo,tag_name:i,name:e.releaseTitle?e.releaseTitle:i,draft:e.draftRelease,prerelease:e.preRelease,body:d});yield

   after:

   u.endGroup(),r.data.upload_url})))(n,{owner:r.repo.owner,repo:r.repo.repo,tag_name:i,name:e.releaseTitle?e.releaseTitle:i,draft:e.draftRelease,prerelease:e.preRelease,body:d,generate_release_notes:i.generateReleaseNotes});yield

3. before:

   "target_commitish":{"type":"string"}},"url":"/repos/:owner/:repo/releases"},"createStatus":{"method":"POST","params":{"context":{"type":"string"},

   after:

   "target_commitish":{"type":"string"},"generate_release_notes":{"type":"boolean"}},"url":"/repos/:owner/:repo/releases"},"createStatus":{"method":"POST",

that's it for the changes; it's legit

[xavt]

dist/index.js would have been better of as un minified...