Issue 3031 - Add Adblock Browser section to First Run Page (localization)

locale/ast/firstRun.json

 {
   "firstRun_acceptableAdsExplanation": {
     "message": "Queremos afalar que les páxines web usen una publicidá más direuta y qu'estorbe menos. Poro, establecimos unes <a>regles estrictes</a> col envís d'identificar los anuncios aceptables, que s'amuesen nes opciones predeterminaes. Si inda quier bloquiar tola publicidá, pue <a>desactivar</a> esto nunos segundos."
   },
   "firstRun_acceptableAdsHeadline": {
     "message": "Los anuncios cafiantes bloquiaránse darréu"
   },

[Philip Hill, 2015/09/11 13:06:34]

Since this locale turns out to be Spanish from Asturias, we can add regular
Spanish.

[saroyanm, 2015/09/11 13:45:12]

Done.

   "firstRun_dataCorruptionWarning": {
     "message": "¿Sigue apaeciendo esta páxina? <a>¡Calque equí!</a>"
   },
   "firstRun_title": {
     "message": "Instalóse Adblock Plus"
   },
   "firstRun_toggle_off": {
     "message": "DESACTIVÁU"
   },
   "firstRun_toggle_on": {
     "message": "ACTIVÁU"
   }
-}
+}

[Sebastian Noack, 2015/09/11 11:53:55]

Can you please remove files from the patch where just the new line at the end of
the file where added/removed. That would make it either to review this change.

[saroyanm, 2015/09/11 12:51:25]

I removed the new lines from all files to make them consistent.
Check: "Patch Set 2"