Revert "Revert "Explicitly test the env var option with binary setting""

This reverts commit 0fe9609e1baab8945123548769956dcd0422ccce.
Revert "Test file creation mode for install.rdf/bootstrap.js"

This reverts commit cf9335a87715ef4ece9e36cbd604bfe2e3234d5a.
Merge pull request #45 from jsantell/revert-tests2

Revert tests2