quicksilver/Quicksilver — pull request #987 by ybian (2012-07-12 07:14:21+00:00)
Title: Add option "switch to US keyboard when activated"

When this option is turned on, once QS is activated, the input source is
changed to US automatically.

This is a frequently requested feature by non-English natives:

https://github.com/quicksilver/Quicksilver/issues/371
https://groups.google.com/forum/?fromgroups#!topic/blacktree-quicksilver/Kb2yje7MI4I