python*-pth packages into meta-packages which will install the non-pth
packages. Bump PKGREVISIONs on the non-pth versions to propagate the
thread change, but leave the *-pth versions untouched to not affect
existing installations.
Sync all PYTHON_VERSIONS_AFFECTED lines in package Makefiles.
Relevant changes:
-You can now specify from the server that the helper app should borrow a
lock by passing borrow_lock=1 via the request, thus suppressing the dialog
box which appears by default.
-Added manpage.
