- newsletters listing now uses hash history
- newsletters are sorted by Subject (a->z)
- segments are sorted by Name (a->z)
- re-added WordPress Users list as a segment you can send a newsletter to
- added explicit error messages when an auto newsletter isn't fully configured
- added missing strings for "selectAll" in Segments listing
- fixed filters() in Subscribers listing (wrong count as it was not taking groups/filters/search into account)