Update REAMDEs

- remove hardcoded versions
- add bulk app upload step
- correct stream properties
- remove redis requirement

analytics/twitter-analytics/README.adoc

@@ -51,6 +51,14 @@ dataflow:>version
 1.0.0.BUILD-SNAPSHOT
 ```
 
++
+. https://github.com/spring-cloud/spring-cloud-dataflow/blob/master/spring-cloud-dataflow-docs/src/main/asciidoc/streams.adoc#register-a-stream-app[Register] Kafka binder variant of out-of-the-box applications
++
+
+```
+dataflow:>app import --uri http://bit.ly/stream-applications-kafka-maven
+```
+
 +
 . Create and deploy the following streams
 +