more explicit .travis.yml, remove /dev/shm fix

explicit ubuntu trusty sudo-required
/dev/shm fix for multiprocessing.Queue is no longer needed

also remove commented-out docs build, will be different when re-added

.travis.yml

@@ -1,3 +1,5 @@
+dist: trusty
+sudo: required
 language: python
 python:
   - "2.7"
@@ -11,8 +13,6 @@ install:
   - pip install -r dev-requirements.txt
   # install fab to test fab
   - pip install -e .
-  # Deal with issue on Travis builders re: multiprocessing.Queue :(
-  - "sudo rm -rf /dev/shm && sudo ln -s /run/shm /dev/shm"
 before_script:
   # Allow us to SSH passwordless to localhost
   - ssh-keygen -f ~/.ssh/id_rsa -N ""
@@ -26,11 +26,5 @@ script:
   - fab test
   # Integration tests
   - fab -H localhost test:integration
-  # Build docs; www first without warnings so its intersphinx objects file
-  # generates. Then docs (with warnings->errors), then www again (also w/
-  # warnings on.) FUN TIMES WITH CIRCULAR DEPENDENCIES.
-  # - invoke www
-  # - invoke docs -o -W
-  # - invoke www -c -o -W
 notifications:
   email: false