Remove the prefix_name parameter usage from the MySQL and HDFS sinks
Adapt the tests for working without the naming_prefix parameter
Delete the naming prefix max lenght constant
Delete the namig_prefix for HDFS and MySQL in the configuration examples
Remove additional references to the prefix_name parameter
Merge branch 'develop' into backlog/224

Conflicts:
	flume/README.md
	flume/src/main/java/es/tid/fiware/fiwareconnectors/cygnus/sinks/OrionHDFSSink.java
	flume/src/main/java/es/tid/fiware/fiwareconnectors/cygnus/sinks/OrionMySQLSink.java
Merge branch 'develop' into backlog/224
Merge pull request #231 from telefonicaid/backlog/224

backlog/224