Allow build failures for CouchDB; its support will likely be removed …

…in the future

.travis.yml

@@ -3,10 +3,12 @@
 #-  .travis.yml ~~
 #
 #   These instructions run QMachine's tests 11 times -- 2 versions of Node.js
-#   against 5 databases each, plus Ruby against Mongo.
+#   against 5 databases each, plus Ruby against Mongo. CouchDB support is
+#   probably going to be removed soon, so its failures are allowed (and, at
+#   this point, somewhat expected ...).
 #
 #                                                       ~~ (c) SRW, 15 Jul 2013
-#                                                   ~~ last updated 29 Dec 2014
+#                                                   ~~ last updated 08 Jan 2015
 
 before_install:
   - npm install -g npm@latest
@@ -30,6 +32,8 @@ env:
 language: node_js
 
 matrix:
+  allow_failures:
+    - db=couch
   include:
     - node_js: '0.10'
       env: backend=ruby-app db=mongo