2.0 alpha.2

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2.0 alpha

minor package.json fixes and version bump

fix a test broken by updated d3

this is a backport of 7734214

Prepare for 1.6

  remove scatter
  update versions Fixes dc-js#278

fix dc-js#228

[dc-js#178] introduce clip padding

missing semicolon

missing semicolon

[dc-js#131] introduce filter handler