Fix a few instances of passing the user object rather than the user id to ActiveRecord created_by or updated_by fields.

Signed-off-by: Brian Prodoehl <brianp@octosh.prodoehl.local>
Revert "Fix a few instances of passing the user object rather than the user id to ActiveRecord created_by or updated_by fields."

This reverts commit 7d80abfd994298b0c61a7cf7de8647193d54e351.
Fix task set creation and execution updates
Merge pull request #49 from bprodoehl/master

Fix task set creation and execution updates