The user on the coreos boxes is core, not coreos

s/coreos/core
Merge pull request #1750 from jonashuckestein/patch-2

docs(upgrading): The user on the coreos boxes is core, not coreos
fix(client): do not prepend the app name twice
Merge pull request #1768 from ngpestelos/fix-prepend-twice

fix(client): do not prepend the app name twice
fix(test): Verify apps:run output
docs(EC2): CloudFormation

Updated README regarding changing the InstanceType in EC2 CloudFormation

closes #1758
Merge pull request #1759 from ianblenke/master

Updated README regarding changing the InstanceType in EC2 CloudFormation
feat(router): custom request size.
Merge pull request #1770 from johanneswuerbach/improve-integration-test

fix(test): Verify apps:run output
Merge pull request #1777 from aledbf/custom_body_size

feat(router): custom request size.
docs(router): keep etcd keys ordered.
Merge pull request #1779 from aledbf/1777_sort_list

docs(router): keep etcd keys ordered.
fix(controller): allow unicode in config:set and app logging