Remove Redis version from Linux scripts (#56)

* Remove Redis version from Linux scripts

* Add documentation.

lib/python/ray/services.py

@@ -81,7 +81,7 @@ def start_redis(num_retries=20, cleanup=True):
   Raises:
     Exception: An exception is raised if Redis could not be started.
   """
-  redis_filepath = os.path.join(os.path.dirname(os.path.abspath(__file__)), "../common/thirdparty/redis-3.2.3/src/redis-server")
+  redis_filepath = os.path.join(os.path.dirname(os.path.abspath(__file__)), "../common/thirdparty/redis/src/redis-server")
   counter = 0
   while counter < num_retries:
     if counter > 0:

lib/python/setup.py

@@ -21,7 +21,7 @@ class install(_install.install):
 setup(name="ray",
       version="0.0.1",
       packages=find_packages(),
-      package_data={"common": ["thirdparty/redis-3.2.3/src/redis-server"],
+      package_data={"common": ["thirdparty/redis/src/redis-server"],
                     "plasma": ["build/plasma_store",
                                "build/plasma_manager",
                                "lib/python/libplasma.so"],