Copy regression-test file to support

It makes most sense if all of the support files are in one place: the Lua
script assumes this.


git-svn-id: http://www.latex-project.org/svnroot/experimental/trunk@4761 de43f980-851b-0410-b2f7-c40aca1f87e0
Clean out bundle main dirs

Without this, .zip files will be left behind.


git-svn-id: http://www.latex-project.org/svnroot/experimental/trunk@4762 de43f980-851b-0410-b2f7-c40aca1f87e0