Merge pull request #10 from dolob-mrmr/hamzah

removed Visio-Activity Diagram (old one).
Merge pull request #11 from dolob-mrmr/hamzah

Added User Stories into Software Requirements folder.
updated user stories 2/9/14 11pm
Merge pull request #12 from dolob-mrmr/hamzah

Added Sprint and Product Backlog
Merge pull request #13 from dolob-mrmr/zhihao

updated user stories 2/9/14 11pm
Added Sprint 2 into the backlog