removed extra init_db function from views.py
Updated index to render basic stats dynamically. Also added graphs (with just dummy data), to all urls.
Hooked up the stats for each url to be rendered using the same ajax request which gets the data for the graphs.
ajax requests now pass url of link clicked to the response_time_details() function
Fixed bug in passing url to ajax, wasn't assigning value to variable name...
Added some documentation for functions used in front-end
Merge pull request #12 from plesf/master

Index page renders completely dynamically. Ajax requests set-up for each url. Documentation added.