Address #133 (examples broken due to transform creation changes)

By default, when Transform::fromAlgorithm is used, attach a stream transform
as the root of whatever transform is created (can be disabled with a flag).

Actually implement stream project(template), give a warning if only returning
one of N templates.
Warn on Expand::project(template), qFatal is excessive here
Merge pull request #134 from biometrics/template_updates

Address #133