chore(protractor): run travis-ci e2e tests on IE10

...can we?
TESTING: Revert "fix(inputs): ignoring input events in IE caused by placeholder changes or focus/blur on inputs with placeholders"

This reverts commit 5a591f71319202a34a1dd6661581364b3d1c5095.

Conflicts:
	src/ngScenario/dsl.js