Release 0.7.1

Separate python 2 and 3 wheels for PyPI distribution

Author: EntilZha

setup.cfg

@@ -1,4 +1,4 @@
 [metadata]
 description-file = README.md
 [wheel]
-universal = 1
+universal = 0

setup.py

@@ -25,7 +25,7 @@
     license='MIT',
     keywords='functional pipeline data collection chain rdd linq parallel',
     packages=find_packages(exclude=['contrib', 'docs', 'tests*', 'test']),
-    version='0.7.0',
+    version='0.7.1',
     install_requires=install_requires,
     extras_requires={
         'all': ['pandas']