chore(packaging): prep for grmp-1.0.0 release (#189)

Fixes #188

Author: tseaver

setup.py

@@ -32,7 +32,7 @@
     'enum34; python_version < "3.4"',
     "google-api-core >= 1.21.0, < 2.0dev",
     "google-cloud-core >= 1.1.0, < 2.0dev",
-    "google-resumable-media >= 0.5.0, < 0.6dev",
+    "google-resumable-media >= 0.5.0, < 2.0dev",
     "six >=1.13.0,< 2.0.0dev",
 ]
 extras = {