Fix sorted=false feature

1. Enable the sorted=false parameter to map views
2. Enhance view_cb to tolerate rows before meta
3. Enhance view_cb to only send meta if no row has been sent

COUCHDB-3060
3 files changed
tree: 3059a21419825a489a06c9ff638beca6b6169c5f
  1. include/
  2. priv/
  3. src/
  4. test/
  5. .travis.yml
  6. LICENSE