fixes for 0.5.17

Review URL: https://chromiumcodereview.appspot.com//16747010
remove link-rel-import tags in the emitter (this used to work for
component/components). Fix a test that depended on it.

R=terry@google.com

Review URL: https://chromiumcodereview.appspot.com//16692003
Integrated CL suggestions

Fix generated CSS file to be inserted as last link/rel in the head

BUG=

Review URL: https://chromiumcodereview.appspot.com//16958010
v0.4.11+2

BUG=

Review URL: https://chromiumcodereview.appspot.com//16865013
merge chaanges from master
update baselines