Enable VisualEditor on "phase 2" Wikipedias (logged-in users only)

Per discussion with the community, this will enable VisualEditor by
default (for opt-out), for logged-in users only, on the following 26
Wikipedias:

* bg (Bulgarian)
* ca (Catalan)
* ceb (Cebuano)
* cs (Czech)
* da (Danish)
* el (Modern Greek)
* et (Estonian)
* eu (Basque)
* fi (Finnish)
* gl (Galician)
* hr (Croatian)
* hu (Hungarian)
* id (Indonesian)
* lv (Latvian)
* ms (Malay)
* nap (Neopolitan)
* nn (Norwegian - Nynorsk)
* no (Norwegian - Bokmål)
* simple (Simple English)
* sk (Slovak)
* sl (Slovenian)
* tr (Turkish)
* uk (Ukrainian)
* vec (Venetian)
* vo (Volapük)
* war (Waray-Waray)

This change is to go live on Monday, 30 September 2013.

Change-Id: Ia1afea2054059cb947bab8f412a2f19db783dad1