Added some comments and a bit of code while realizing I may be reinventing CanBuildFrom.
Changed name of into into oldInto so I can try a new into.
Got the result types I wanted when mapping into EquaSets with overloading into just in SortedEquaSets.
Added collect to my new bridges.
Got flatMap in the new bridge.
Renamed ye olde EquaBridges to OldEquaBridge.
Renamced NewEquaBridge classes to EquaBridge.