update news/desc

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: AzureStor
 Title: Storage Management in 'Azure'
-Version: 3.1.0.9000
+Version: 3.1.1
 Authors@R: c(
     person("Hong", "Ooi", , "hongooi@microsoft.com", role = c("aut", "cre")),
     person("Microsoft", role="cph")

NEWS.md

@@ -1,8 +1,9 @@
-# AzureStor 3.1.0.9000
+# AzureStor 3.1.1
 
 - Expose `sign_request` as a generic, dispatching on the endpoint class. This is to allow for the fact that table storage uses a different signing scheme to the other storage services.
 - Fix a bug in `list_adls_files` that could result in an error with large numbers of files.
 - Add a `timeout` argument to `call_storage_endpoint` that sets the number of seconds to wait for an API call.
+- Fix authentication logic for retrying failed requests.
 
 # AzureStor 3.1.0