2.9.0
    - Added heatmaps
    - Added image-filters
    - Solved problem of CSS not updating the vis until reloaded
    - Improved out of bounds correction function
    - Fixed image-asset sizing
    - Fixed items to load counter being sometimes negative
    
2.8.0
    - Supports use of external image markers via marker-file
    - Fixes Torque tiles not rendering outside normal lat/lng ranges.
    - Fixes marker image default pivot point
    - Fixes ghost frame being added to the end of animation
    - Moved to browserify for compatibility with Node.js
2.7.1
    - Fix renderer not rendering marker-lines

2.7.0
    - Adds option to not fetch map when instantiating a windshaft provider (#74)

2.6.1
    - Fix marker fill opacity (#72)

2.6.0
    - Published using browserify

2.5.xx
    - Added support for several auth_token param
    - Added support for cdn_url in winshaft provider
    - Added option to jsonp to set custom callback name
    - Added no_cdn option to windshaft provider
    - Added getActivePointsBBox method
    - Added renderer cache when the map is not animated
    - Added interaction method
    - Added stat_tag in the map creation url for windshaft provider
    - Added invalidate method to L.TorqueLayer

2.4.01
    - fixed rectangle anchor and size #42
    - fixed on method in torque.Event
    - fixed problem updating steps when sql change in windshaft provider

2.4.00 - May/22/2014
    - Changed date parsing for windshaft provider
    - Optimized tile loading
    - Fixed cartocss update when windshaft.provider was being used
    - Fixed windshaft provider with https
    - Generate cartocss in windshaft provider (#37)
    - Added zoom animation for leaflet
    - Added metrics to track memory and time
    - Pause on zoom
    - Fixed sprite rendering when line width is a float

2.3.00 - Feb/24/2014
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    - Added 'get attribution' function to Leaflet canvas layer.
    - Added zIndex support to leaflet torque layer
    - Added CartoDB Maps API data provider (used by default)
    - Fixed rendering when CartoCSS had zoom conditions (#27)

2.2.00 - Nov/26/2013
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    - added torque cumulative support #21

2.1.00 - 11/11/2013
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    - added support to custom SQL query
    - removed is_time option, it's not fetch from SQL-API
    - steps is now the upper limit for steps
    - multiple fixes