Rakefiles: fixed tasks `workflow:*` to work on SWING CI On SWING CI, sources of `stx:stc` and `stc:librun` (as well as `.hg` repository) are removed as soon as binaries are compiled (as safety neasure). Therefore, we have to check that there's really a physical mercurial repository in package working copy. Trusting `repo.type` is not enough as it may have been removed.

syntax: glob

build
artifacts
reports
config.rb
.rake_tasks~