GitLab

* Added SensorConfig and DCDBPublicSensor classes as interface for dcdbconfig
* Fixed bugs and tested:
  --> CollectAgent fully working
  --> dcdbconfig fully working

* Bump cpp-driver to 2.0.1
* Create new SensorId header/source that takes over the logic
  previously found in SensorDataStore related to populating
  SensorId structs from MQTT topic strings and serializing
  them into Byte Arrays to be used as Cassandra Row Keys.

* Bumped Cassandra to 2.1.5
* Bumped cpp-driver to 2.0
* Eliminated cassandraBackend in favor of DCDBConnection

In the future, a DCDBConnection handles the low-level connection
to Cassandra. On top of an established DCDBConnection, you can
create a SensorDataStore object which gives you access to raw
sensor readings.

Found some memory leaks in DCDBLib and fixed
a bug related to thread handling in CollectAgent.

to the cassandra data store.

The collectagent command accepts now an argument to specify the listen address. If no arguments are passed, the collectagent listens by default to localhost at port 1883.

Moved all of CollectAgent's Cassandra related stuff to DCDBLib.
Bumped Cassandra to 1.2.13.
Minor build system improvements.

This results in a much cleaner collectagent.cpp file and main function.
However, further cleanups are necessary and the respective TODOs can be
found in the code.

FilePusher now accepts a topic string at the command line.

Removed mosquitto dependency entirely. Started reworking collectagent main routines and message handling.

the SimpleMQTTServer after receiving an MQTT message.