twill is optional and has currently a 404 error

.travis.yml

@@ -12,8 +12,7 @@ before_install:
 # command to install dependencies
 install:
   - pip install -r requirements.txt --use-mirrors
-  - pip install pyftpdlib --use-mirrors
-  - pip install pytest-xdist --use-mirrors
+  - pip install pyftpdlib pytest-xdist --use-mirrors
 # command to run tests
 script: make test PYTESTOPTS="--tb=short" TESTS="tests/test_*.py tests/cache/test_*.py tests/configuration/test_*.py tests/logger/test_*.py"
 # do not send emails of broken builds

requirements.txt

@@ -2,7 +2,7 @@
 requests>=2.2.1
 # optional:
 argcomplete
-twill
+#twill
 # for testing:
 #pytest
 #pyftpdlib