Topic 1: Items 1 thru 8 completed.
Topic 1: Tweets overlay added. Fixed greeting message service call.
Topic 1: All points completed from 1 to 9.
Topic 1: Point 10 completed.
Topic 1: Fixed IE compatibility issue.
Topic 1: Styling fixed.
Topic 1: Readme file updated with exercises descriptions.
Merge branch 'learningDays/topic1'