Fix the localization option in the Welcome page.

* Titles were not being updated when changing locale. Use the title string resource for the page titles.
* Use a modified "NumberPicker" similar to Google Setupwizard.

* Change 2 - fix typo

Change-Id: I409ede775e11f2bfe7c0cd6ceaa352b36a23c7e6
Merge "Fix the localization option in the Welcome page." into cm-10.2