Store regex for Job and Job Chain filters

In the 1.3.5 release, regular expressions can be used to check boxes in the "Manage filters" dialog.
When storing the filter, the checked jobs (or job chains) are stored.

It would be better to store the regular expressions (if used), because:

• dynamic filters can be built, jobs which are later added with the same naming scheme don't need to be added to the filter manually
• problems due to large cookies could be avoided (see https://sourceforge.net/forum/forum.php?thread_id=2679698&forum_id=486121 )