Merge pull request #6 from seixasfelipe/master

QuestionsFactory and converting to use $scope
Adding angular timer module

module from https://siddii.github.io/angular-timer/index.html
removing old elapsed logic
referencing angular timer js script
including timer module to controller
making timer stop when verify the answer
making timer start when reset the question
simple timer on top
including the timer label at the end
Merge pull request #7 from fraga/betterTimer

Better timer
add service in a new file #9
new controllers folder #9
moved js script to the end of html file