5.0.0-rc.4

Bug Fixes

• afs: added missing type to doc() (#1286) (3e00e16)
• afs: allow document set options (#1333) (81018ed), closes #1332
• afs: catch error when enabling persistence (#1300) (61245a3)
• afs: export interfaces (#1277) (4a21857)
• db: inherit generics in valueChanges interface (10afd64), closes #1214
• db: update should take a Partial object (#1330) (20e66f5), closes #1329