Bug 937369 - Use moz.build in accessibility/src/jsat. r=davidb
Bug 937466 - Introduce Constants module. r=yzen
Bug 937775 - Make AccessFu logging less verbose by default. r=yzen
Backed out 4 changesets (c0e8f2c0465f::608c663f691f) (bug 928195) for landing prematurely

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extra : rebase_source : fa42534ef50a0373738349f17b2ca57510bdd6ac