bump version to fix bug in a3

Author: narendasan

README.rst

@@ -106,7 +106,7 @@ Possible values
   ``NVIDIA_VISIBLE_DEVICES`` and ``NVIDIA_DRIVER_CAPABILITIES`` will
   default to ``all``.
 
-``disable_require`
+``disable_require``
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Single switch to disable all the constraints of the form

setup.py

@@ -12,7 +12,7 @@
 
 setup(
     name='nvdocker',
-    version='0.0.2a3',  
+    version='0.0.2a4',  
     description='nvdocker is library built on top of the docker-py python sdk to build and run docker containers using nvidia-docker. Targets nvidia-docker2', 
     long_description=long_description, 
     url='https://github.com/acm-uiuc/nvdocker', 
@@ -35,4 +35,4 @@
     keywords='docker nvidia-docker development containers frameworks',
     packages=find_packages(exclude=['contrib', 'docs', 'tests']),
     install_requires=['docker'],
-)
+)