fix azure_rm.py to work with 2.0.0rc5 or rc6

contrib/inventory/azure_rm.py

@@ -786,11 +786,11 @@ class AzureInventory(object):
 
 def main():
     if not HAS_AZURE:
-        sys.exit("The Azure python sdk is not installed (try 'pip install azure==2.0.0rc5') - {0}".format(HAS_AZURE_EXC))
+        sys.exit("The Azure python sdk is not installed (try 'pip install azure>=2.0.0rc5') - {0}".format(HAS_AZURE_EXC))
 
-    if LooseVersion(azure_compute_version) != LooseVersion(AZURE_MIN_VERSION):
+    if LooseVersion(azure_compute_version) < LooseVersion(AZURE_MIN_VERSION):
         sys.exit("Expecting azure.mgmt.compute.__version__ to be {0}. Found version {1} "
-                 "Do you have Azure == 2.0.0rc5 installed?".format(AZURE_MIN_VERSION, azure_compute_version))
+                 "Do you have Azure >= 2.0.0rc5 installed?".format(AZURE_MIN_VERSION, azure_compute_version))
 
     AzureInventory()