Made addTarget and removeTarget chainable.
Updated HISTORY.md.
Typo correction
Typo correction
Added unit test to assert that addTarget and removeTarget are chainable.
Ensure req.params is correctly populated for Routers with a non-default root path (i.e. more than just "/" e.g. "/foo/").
Compute the `routePath` from the full `path` once per dispatch in Router
Build Router
Fix typo in io-upload-iframe

appendData -> _addData
Build IO, no min changes.
Merge branch 'live-docs' into dev-master

Conflicts:
	build/io-upload-iframe/io-upload-iframe-coverage.js
Merge branch 'dev-master' into dev-3.x
Merge branch 'paginator-typo-fix' into live-docs
Build DT.Paginator
Merge branch 'live-docs' into dev-master

Conflicts:
	build/datatable-paginator/datatable-paginator-coverage.js
Merge branch 'dev-master' into dev-3.x
Merge remote-tracking branch 'solmsted/addTargetRemoveTargetChainable' into dev-3.x
Build event-custom