Merge pull request #159 from rollbar/cleaned-up-unused-code

Removed some old dev utilities and updated the export-ignore paths in .gitattributes

Author: danielmorell

.gitattributes

@@ -1,7 +1,6 @@
 /tests              export-ignore
+/.github            export-ignore
 /.gitattributes     export-ignore
 /.gitignore         export-ignore
-/.travis.yml        export-ignore
-/.styleci.yml       export-ignore
 /phpunit.xml        export-ignore