Fix flaky search bar
Fix flaky search bar

https://trello.com/c/6Juq9zZ2/239-search-field-flakes-when-user-enters-very-long-string

The issue is confirmed here: http://stackoverflow.com/a/19222238/86910

I've opted against adding `textVisiblePassword` as the original,
linked-to issue says it can cause additional issues on certain
keyboards/devices.

Signed-off-by: Stephen Celis <06fa905d7f2aaced6dc72e9511c71a2a51e8aead@stephencelis.com>

kickstarter/android-oss,kickstarter/android-oss,kickstarter/android-oss,kickstarter/android-oss