Akhq.py

Schema registry support !
- List schema
- Create / update / delete a schema
- View and delete individual schema version
- Automatic deserialization of avro message on data view

:warning: The configuration file have changed in order to support Schema registry :warning:

**Before** :

{
kafka {
connections {
my-cluster-1 {
bootstrap.servers: "kafka:9092"
}
}
}


**Now** :

{
kafka {
connections {
my-cluster-1 {
properties {
bootstrap.servers: "kafka:9092"
}
registry: "http://schema-registry:8085"
}
}
}


All configurations parameters are now in a `properties` key


* Allow to produce directly to topic from the ui
* Filter on consumer groups & topic list
* Fix delete consumer group


Features :
* Update config for nodes & topics
* Create a topic [7]
* Update consumers group offset by first / last / timestamp offsets

Bugfix:
* Fix scrollbar issue on data page for firefox [12]
* Add a docker-compose.yml to quick start a preview of KafkaHQ [15]
* Update README.md to clarify configuration file [11]


New feature to search in topic data using server-sent events


Complete refactor in assets to have modules

Fix fetch topic data for :
* Compacted topic that could show empty result
* Sort newest that could skip some last records

Add unit test to validate that all data is consumed

* Topic Tab : display log dir info
* Topic Data : Allow to delete a record on compacted topic
* Topic Data : Display headers on datas pages
* Topic Data : filter by timestamp
* Topic Data : Double click to see with highlight
* Dev environment with livereload