Run tests against Python 3.4

.travis.yml

@@ -5,21 +5,25 @@ env:
   - TOXENV=py27 SODIUM_INSTALL=bundled CC=gcc
   - TOXENV=py32 SODIUM_INSTALL=bundled CC=gcc
   - TOXENV=py33 SODIUM_INSTALL=bundled CC=gcc
+  - TOXENV=py34 SODIUM_INSTALL=bundled CC=gcc
   - TOXENV=pypy SODIUM_INSTALL=bundled CC=gcc
   - TOXENV=py26 SODIUM_INSTALL=system CC=gcc
   - TOXENV=py27 SODIUM_INSTALL=system CC=gcc
   - TOXENV=py32 SODIUM_INSTALL=system CC=gcc
   - TOXENV=py33 SODIUM_INSTALL=system CC=gcc
+  - TOXENV=py34 SODIUM_INSTALL=system CC=gcc
   - TOXENV=pypy SODIUM_INSTALL=system CC=gcc
   - TOXENV=py26 SODIUM_INSTALL=bundled CC=clang
   - TOXENV=py27 SODIUM_INSTALL=bundled CC=clang
   - TOXENV=py32 SODIUM_INSTALL=bundled CC=clang
   - TOXENV=py33 SODIUM_INSTALL=bundled CC=clang
+  - TOXENV=py34 SODIUM_INSTALL=bundled CC=clang
   - TOXENV=pypy SODIUM_INSTALL=bundled CC=clang
   - TOXENV=py26 SODIUM_INSTALL=system CC=clang
   - TOXENV=py27 SODIUM_INSTALL=system CC=clang
   - TOXENV=py32 SODIUM_INSTALL=system CC=clang
   - TOXENV=py33 SODIUM_INSTALL=system CC=clang
+  - TOXENV=py34 SODIUM_INSTALL=system CC=clang
   - TOXENV=pypy SODIUM_INSTALL=system CC=clang
   - TOXENV=docs
   - TOXENV=meta

tox.ini

 [tox]
-envlist = py26,py27,pypy,py32,py33,docs,meta
+envlist = py26,py27,pypy,py32,py33,py34,docs,meta
 
 [testenv]
 deps =