Bump version 0.5.2
Reuse action
Group all skips under a Context for orphans

Skips/ignores were not inserted into the nodes' tree, so they were not
visited when traversing the results.
This hardcodes them into a sibling context to the root, then they can be
traversed later.
Fix tag for skipped results
Return actions to keep interface
Merge branch '0.5.2'