WayIterables

WAYBASE-1
Merge pull request #9 in WAY/way-base from MOE/WAYBASE-1-waylists to master

* commit 'e535403165c0b5613a9590b67b95e41746ee560f':
  WayIterables
conflicts
WayIterables: filtering & more

WAYBASE-2
Merge pull request #10 in WAY/way-base from MOE/WAYBASE-2-wayiterables.filter-more to master

* commit 'ae9a2ea53e501688ca507378b580903b29c2a564':
  WayIterables: filtering & more