registration backend

Changed the types of flash messages that were send to correspend with twitter bootstrap css
Added message when routing to login page after succesfull registration
related: #4
continuation on commit: 04595bbbfe2d9dd03bf1bd5376bb31f84ab83c36
About page

work done regarding issue #18
When and where page

creation of/ routing to when and where page
work done related to issue #4
tombola page

more work related to issue #18
creation and routing of the tombola page
Participant page

Fixes #18
added page and routing for participant page
participant page is just a placeholder and logic is yet to be implemented