Hi there. Is there an equivalent mechanism to a perforce job in svn, for grouping related changes?
To group related changes, you'd use a changelist
From what I've read about jobs, they're kind of like bug tracking references.
To associate a bug reference when committing, you'd have to implement something on top of SVN (as SVN doesn't have an integrated bugtracker), but you'd also have to say which bugtracker you did want to integrate with - and that means the technique will be different. In all cases, the bugtracker-association is performed in the post-commit hook.
For example, I use Mantis as my bugtracker, when I commit a change, if I've entered some magic words in the log message (eg "Fixed Bug #1234", or "Fixed Mantis #1234") then the post-commit hook will send that message and the extracted bug number to a Mantis URL using curl and automatically resolve the bug (and also add the log message text to the bugnote).
For a bugtracker, you can substitute any other API-driven system.