show-help: fix bug of now resuming (unlocking) the board after the dialog is dismissed
share-social: add share button on Google Plus
share-social: use angular share social
share-social: add share links to won page
back the game to normal state
fix bug when testing game won condition
reduce-library-dependencies: remove angular share social
reduce-library-dependencies: compile bootstrap for the required features only
reduce-library-dependencies: remove angular socialshare
mobile-friendly: set viewport width to 640
mobile-friendly: show modal dialogs no longer move the body
mobile-friendly: disable bouncing effect of iPhone's Safari
mobile-friendly: move the main content downward