--use-mirrors

It seems to be deprecated, but everybody seems to use it.

.travis.yml

@@ -5,7 +5,6 @@ env:
     - DAV_SERVER=radicale-git
 
 install:
-    - "pip install ."
     - "sh install-deps.sh"
 
 script: py.test

README.md

@@ -19,6 +19,5 @@ Run `vdirsyncer --help`.
 
 ## How to run the tests
 
-    pip install .
     sh install_deps.sh
     py.test

install-deps.sh

@@ -1,8 +1,9 @@
-pip install -r requirements.txt
+pip install --use-mirrors .
+pip install --use-mirrors -r requirements.txt
 [[ -z "$DAV_SERVER" ]] && DAV_SERVER=radicale
 case "$DAV_SERVER" in
     "radicale")
-        pip install radicale
+        pip install --use-mirrors radicale
         ;;
     "radicale-git")
         pip install git+https://github.com/Kozea/Radicale.git