* Support Partial<> on setState now that TS 2.1 is out
* Update readme to reflect setState being typed correctly
* Switch setState to Pick
* Restore cloneELement portion of readme
* Use Pick<> | S for setState due to cast issue
* state and props should be readonly
* Fix nit + document why we
* Add typescript compiler header
* Update to properly order headers
* Update readme to reflect 2.1.5 fixing stPick
* Update readme now that 2.1.5 is out
* All that depend on react now require 2.1
* Fix definition that fails due to readonly state
