Test that conditional headers are not set when no revision is given
Test that conditional headers are not set when no revision is given

This tests that the If-Match and If-None-Match headers
are not set at all, meaning that they are also not
just undefined.
remotestorage/remotestorage.js,remotestorage/remotestorage.js,lewisl9029/remotestorage.js,lewisl9029/remotestorage.js,mcanthony/remotestorage.js,untitaker/remotestorage.js,theWebalyst/remotestorage.js,remotestorage/remotestorage.js,theWebalyst/remotestorage.js,mcanthony/remotestorage.js,untitaker/remotestorage.js