Enable en/ru spellcheck in travis

Author: Vadim Rutkovsky

.travis.yml

@@ -2,6 +2,16 @@ addons:
   apt:
     packages:
     - sshpass
+    - enchant
+    - enchant-dev
+
+env:
+ - TESTS="spellcheck"
+ - TESTS="build"
+
+matrix:
+  allow_failures:
+    - env: TESTS="spellcheck"
 
 language: python
 cache: pip
@@ -11,7 +21,10 @@ python:
 install: "pip install -r requirements.txt"
 
 script:
-  - nikola build
+- case $TESTS in
+  spellcheck) nikola plugin -i spell_check ;;
+  build) nikola build ;;
+  esac
 
 deploy:
   skip_cleanup: true