Make pip quiet

.travis.yml

@@ -49,19 +49,19 @@ before_install:
   - export LD_LIBRARY_PATH=$HOME/.local/lib
   # Install the python bindings.
   - cd bindings/python
-  - pip install .
+  - pip --quiet install .
   # Move out of the notmuch dir again.
   - cd ../../..
 
 install:
   # urwid needs to be installed first.  The installation of urwidtrees will
   # fail otherwise.
   # TODO This should be fixed upstream.
-  - pip install urwid
+  - pip --quiet install urwid
   # Install alot and the dependencies it declares.
-  - pip install .
+  - pip --quiet install .
   # Install sphinx for building the documentation of alot.
-  - pip install sphinx
+  - pip --quiet install sphinx
 
 before_script:
   # Prepare a minimal config file for the final test.