Changelog for CouchDB-1.2.2

1.2.2 (2015/5/6) * Change of maintainer * Fix Functor/Applicative instances * Remove incorrect Content-Encoding header, needed for recent CouchDBs (#17 in old repo) * Fix tests 1.2.1 (2015/4/25) * GHC 7.10 compatibility * allow utf8-string 0.3.8+ * fix compilation with network >= 2.6 (#18)