Merge pull request #3 from arashm/master

Fix some bugs
removes text due to availablity of global loading icon
better tooltip with pure ruby code! link_to instead of <a>
better place for tooltip
stories must be in favotries not comments
adds social links for nerdnews
better title for messages
adds history for ajax calls
users can vote must see voting buttons
removes a leading false word in comments
after ajax call must be call tooltip
adds apple touch icon and favicon and some meta tags:
current class for login and signup
compatibles with jquery 1.9
updates rails and other gems
unlinks add_to_favorite after added to favorites
better condition
removes config files and makes a example config file
tweets to twitter after story is published
fixes detecting env