Separate out py3 requirements and remove email

The email module is included with py3. Separating out py3 requirements
so we dont try to install it there.

Change-Id: I06d4fdf46677db6465374cc8da6b5cdd0c5defa3

requirements-py3.txt

@@ -0,0 +1,28 @@
+pbr>=0.6,!=0.7,<1.0
+jsonschema>=2.0.0,<3.0.0
+argparse
+alembic>=0.4.1
+Babel>=1.3
+iso8601>=0.1.9
+oauthlib>=0.6
+oslo.config>=1.2.1
+oslo.context>=0.1.0
+oslo.utils>=1.2.0
+pecan>=0.4.5
+oslo.db>=0.2.0
+oslo.log>=0.1.0
+pika>=0.9.14
+python-openid
+PyYAML>=3.1.0
+requests>=1.1
+six>=1.7.0
+SQLAlchemy>=0.9.7,<=0.9.99
+WSME>=0.6
+sqlalchemy-migrate>=0.9.1,!=0.9.2
+SQLAlchemy-FullText-Search
+eventlet>=0.13.0
+stevedore>=1.0.0
+python-crontab>=1.8.1
+tzlocal>=1.1.2
+rfc3987>=1.3.4
+Jinja2>=2.7.3

tox.ini

@@ -25,6 +25,10 @@ commands =
     rm -rf doc/source/apidoc doc/source/api
     python setup.py build_sphinx
 
+[testenv:py34]
+deps = -r{toxinidir}/requirements-py3.txt
+       -r{toxinidir}/test-requirements.txt
+
 [testenv:cover]
 commands = python setup.py testr --coverage --testr-args='{posargs}'