Updating gem until @Eonasdan performs new release.

* New version is '3.0.0.1'.
* Using commit: b3784635528627b6500c13979ced4f033af9602e.
* Will resume following @Eonasdan's versions when a new release is
  created.
* This should fix:
  * How the picker is displayed (CSS).
  * Fix the side-by-side on a mobile device.
  * Add the Belarusian locale.
  * Fix the DST bug.
  * Fix setValue ignoring format.
  * Allow toggling of the picker by clicking the open button.