[FIX] set_message_last_post needs to be called in post step
Merge pull request #44 from hbrunn/8.0-fix_analytic

[FIX] set_message_last_post needs to be called in post step
Simplify migration calling, fix breakpoint use

Don't write to a temp file
Use `load_module` instead of `load_source`

This allows the use of breakpoints in IDEs and in pdb

Signed-off-by: Sandy Carter <sandy.carter@savoirfairelinux.com>