Create v1.3.4 branch.
Allow range values in ordinal scales to be derived from a data field
support for time format
Added bower.json
wrap the code to make it also compatible with AMD
make sure it pass the test
remove unused files
remove unnecessary line
fixed bug in assign option to stats
Consolidate path cache (#142).
Merge and fix data-driven ordinal scales (#162)
Add time format support for axes and legends (#165).
Merge branch 'pr173' into v1.3.4 (#173)
Add bower.json (#173).
Merge AMD compatibility (#185).
Fix stats (#186), allow missing topojson.
Merge stats bug fix (#186).
Add polar coords to text marks (#187). Add midAngle to pie transform.
Fix group hit test bug (#166).
Fix axis title centering (#153).