Avoid warning by setting the 'repository' property in package.json.
Avoid warning by setting the 'repository' property in package.json.

Fixes #6

avdv/ember-idx-tabs,avdv/ember-idx-tabs,avdv/ember-idx-tabs,zotebook/ember-idx-tabs,cjc343/ember-idx-tabs,zotebook/ember-idx-tabs,cjc343/ember-idx-tabs,indexiatech/ember-idx-tabs,indexiatech/ember-idx-tabs,cjc343/ember-idx-tabs,indexiatech/ember-idx-tabs,zotebook/ember-idx-tabs