Converting bar chart to use static typing.
First pass of dsv package.
Adding tsv test.
Minor changes.
Adding Selection factory methods.
Making select methods typed.
Adding types to data methods.
Adding typedefs for enter and exit functions.
Adding type annotations to the append method.
Adding type annotations to attr methods.
Adding type annotations to style methods.
Adding type annotations to text methods.
Adding type annotations to html methods.
Adding a readme file.
Fixing bar chart example.
Renaming license and readme files.
Separating get/set expando functions.
Merge branch 'master' into dsv
Passing parseRows tests.
Passing format tests.