Nik Everett ff42d7cfc6 Add embedded stash key support to rest tests
This allowes embedding stash keys in string like `t${key}est`. This
allows simple string concatenation like acitons.

The test for this is in `ObjectPathTests` because `Stash` doesn't seem
to have a test on its own and it is simple enough to test embedded
stashes this way. And this is a way I expect them to be used eventually.
2016-07-01 14:11:11 -04:00
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