halostatue/mime-types — pull request #13 by Caerbannog (2012-03-25 01:32:19+00:00)
Title: Fix a missing dash in mime type vnd.adobe.air-application-installer-package

There was a typo in issue #6 and then commit f53f6b7e186e5d6266c4aeca47ef509a6bc84d2c that made it into v1.18.
Just add a dash in "vnd.adobe.air-applicationinstaller-package" before "installer".

Source :
http://www.adobe.com/devnet/air/articles/air_badge_install.html
and everywhere else on the internetz.