Remove ts:examples from default grunt task
Have OrdinalScale default to "bands" mode.

"Points" mode isn't used as often.
Merge pull request #439 from palantir/ordinal-bands-default

Have OrdinalScale default to "bands" mode.
Split utils.ts into many files
Merge pull request #442 from palantir/split-utils

Split utils.ts into many files
Can no longer add components multiple times, add tests for ComponentContainer.

Close $446.
Update built files
ComponentContainer.components() now returns shallow copy.
Merge pull request #449 from palantir/446-add-remove

Can no longer add components multiple times, add tests for ComponentContainer
merged with master (with conflicts)