Wikimedia
Change some en.json strings to use American English
In MediaWiki, the "en" locale follows American English spelling, while British English is used in the en-gb locale.
Fix all the examples linked at https://translatewiki.net/wiki/Thread:Support/British_English_in_Mediawiki_messages in at least one repository. While doing so for an extension, check all the other strings in en.json to make sure they follow American English too.
When in doubt about the spelling, check http://en.wiktionary.org/ .
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Students who completed this task
Julian Engel, Ioannis Kydonis, neonowy, MtDu, Scimonster