Adding homepage and bugs links to package.json

Note, this still throws warnings on http://package-json-validator.com/ saying that "latest" isnt semver-ey:
```json
{
  "valid": false,
  "errors": [
    "Invalid version range for dependency eslint-tester: latest"
  ],
  "warnings": [
    "Missing recommended field: contributors"
  ],
  "recommendations": [
    "Missing optional field: engines"
  ]
}
```
Breaking: implement eslint-env and remove jshint/jslint environment comment support (fixes #759)
Rule block-scoped-var works correct with object properties (fixes #755)
Merge pull request #763 from roadhump/issue_759_pr

Added env configuration per file (fixed #759)
Lint tests on build (fixes #764)
Merge pull request #739 from pdehaan/patch-4

Adding homepage and bugs links to package.json
Fix: Cleanup package.json
Merge pull request #766 from roadhump/issue_764

Lint tests on build using their .eslintrc file (fixes #764)
Merge pull request #757 from roadhump/issue_755

fixes #755: block-scoped-var with object properties