Issue #2 Add redis_del

* Update RedisMock to have del mock aswell
Issue #2 Add redis_del

* Update Redis to have del aswell
Issue #2 Add redis_del

* Update TestApp to have del aswell
* Update tests to have del aswell
Merge branch 'develop' into feature/issue-2-add-redis_del
Merge pull request #4 from burnersk/feature/issue-2-add-redis_del

Add redis del