note ticket addressed
closes #14, expand touchArea for dropper button
move concentration meter title up 2 pixels so that it looks OK on Android+Firefox
note change to scenery-phet.FaucetNode
concentration#9: dropper button gets stuck in 'down' position, switch to using DownUpListener
concentration#10, when enabled becomes false, turn dropper off, so that we don't have odd multitouch behavior
make third-party clause the same in all README files, and the clause where it was missing, properly hyphenate "Third-Party" where it was incorrect.
resolved merge issues