Mostly stylistic changes and comment corrections. Also:

* swapped $specialPageAliases to $aliases (correct var name) in the alias file
* fixed qqq in the main i18n file
* fixed the language code of Danish (da -> dk)
* fixed the Finnish translation of the 'donate' message ("lahjoittaa" is the dictionary form of the verb, i.e. it'd translate back to English as "to donate", instead of "donate" (imperative mood))