Modified tournaments in tournamentdates.csv

Changed tournamnet on the 7/10/14 from NLHE Freezeout to £300 Freeroll
freezeout
Added pastgame mock data files

Used for testing past game viewer
Renamed scrolling-nav.js to pokersite-nav.js
Removed how to play section, corrected some paths

Removed the how to play section as decided it is not needed. Corrected
paths to css and js files
Removed .howtoplay-section css

removed the css for howtoplay section as it has been removed
CSS for page