azurewadtable - not getting any data pulled out

Hi,

We have our logs in azure cloud, so far we were using linqpad to read them.
I'm setting up ELK so we could analyse them in a more effective way.

following all instruction for https://github.com/Azure/azure-diagnostics-tools/tree/master/Logstash/logstash-input-azurewadtable I'm still unable to get any data.

I changed the collection start time for a date in past, still nothing more than what is below.

```
c:\ELK\logstash-5.6.3\bin>logstash -f logstash-wad.conf
c:/ELK/logstash-5.6.3/vendor/bundle/jruby/1.9/gems/manticore-0.6.1-java/lib/manticore/client.rb:108 warning: already initialized constant DEFAULT_MAX_POOL_SIZE
c:/ELK/logstash-5.6.3/vendor/bundle/jruby/1.9/gems/manticore-0.6.1-java/lib/manticore/client.rb:110 warning: already initialized constant DEFAULT_REQUEST_TIMEOUT
c:/ELK/logstash-5.6.3/vendor/bundle/jruby/1.9/gems/manticore-0.6.1-java/lib/manticore/client.rb:111 warning: already initialized constant DEFAULT_SOCKET_TIMEOUT
c:/ELK/logstash-5.6.3/vendor/bundle/jruby/1.9/gems/manticore-0.6.1-java/lib/manticore/client.rb:112 warning: already initialized constant DEFAULT_CONNECT_TIMEOUT
c:/ELK/logstash-5.6.3/vendor/bundle/jruby/1.9/gems/manticore-0.6.1-java/lib/manticore/client.rb:113 warning: already initialized constant DEFAULT_MAX_REDIRECTS
c:/ELK/logstash-5.6.3/vendor/bundle/jruby/1.9/gems/manticore-0.6.1-java/lib/manticore/client.rb:114 warning: already initialized constant DEFAULT_EXPECT_CONTINUE
c:/ELK/logstash-5.6.3/vendor/bundle/jruby/1.9/gems/manticore-0.6.1-java/lib/manticore/client.rb:115 warning: already initialized constant DEFAULT_STALE_CHECK
c:/ELK/logstash-5.6.3/vendor/bundle/jruby/1.9/gems/manticore-0.6.1-java/lib/manticore/client.rb:590 warning: already initialized constant ISO_8859_1
c:/ELK/logstash-5.6.3/vendor/bundle/jruby/1.9/gems/manticore-0.6.1-java/lib/manticore/client.rb:641 warning: already initialized constant KEY_EXTRACTION_REGEXP
Sending Logstash's logs to c:/ELK/logstash-5.6.3/logs which is now configured via log4j2.properties
[2017-10-18T10:23:24,946][INFO ][logstash.modules.scaffold] Initializing module {:module_name=>"fb_apache", :directory=>"c:/ELK/logstash-5.6.3/modules/fb_apache/configuration"}
[2017-10-18T10:23:24,950][INFO ][logstash.modules.scaffold] Initializing module {:module_name=>"netflow", :directory=>"c:/ELK/logstash-5.6.3/modules/netflow/configuration"}
[2017-10-18T10:23:26,107][INFO ][logstash.inputs.azurewadtable] Using version 0.9.x input plugin 'azurewadtable'. This plugin should work but would benefit from use by folks like you. Please let us know if you find bugs or have suggestions on how to improve this plugin.
[2017-10-18T10:23:26,149][INFO ][logstash.pipeline ] Starting pipeline {"id"=>"main", "pipeline.workers"=>4, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>5, "pipeline.max_inflight"=>500}
[2017-10-18T10:24:41,778][INFO ][logstash.pipeline ] Pipeline main started
[2017-10-18T10:24:41,982][INFO ][logstash.agent ] Successfully started Logstash API endpoint {:port=>9600}
```

Am I totally missing something here?