add typinf dep for python3.4

.travis.yml

   - "3.5"
   - "3.6"
 install:
+  - "python setup.py develop"
   - "pip install -r requirements.txt"
   - "pip install pytest-cov"
   - "pip install coveralls"

setup.py

 # coding: utf-8
+import sys
 from setuptools import setup
 from setuptools import find_packages
 
 ] + cocos2d_require
 
 
+if sys.version_info.major == 3 and sys.version_info.major == 4:
+    install_requires.append('typing')
+
 setup(
     name='synergine2',
     version='1.0.1',