Merge branch 'develop' into backlog/230

* develop:
  [MODIFY] line in README:md
  [DELETE] comment line in notification.py
  [CHANGES] in properties.josn and README.md
  [ADD] info about properties.json file
  [FIX] changes in mysql and ckan tools
  [FEATURE] retries in hadoop acceptance test
  [DELETE] cygnus prefix in properties.json.base
  Remove additional references to the prefix_name parameter
  Delete the namig_prefix for HDFS and MySQL in the configuration examples
  Delete the naming prefix max lenght constant
  Adapt the tests for working without the naming_prefix parameter
  Remove the prefix_name parameter usage from the MySQL and HDFS sinks
Merge branch 'backlog/230' of https://github.com/telefonicaid/fiware-connectors into backlog/230

# Via frbattid
* 'backlog/230' of https://github.com/telefonicaid/fiware-connectors:
[CHANGES] response fake to all request from cygnus
Add a line allowing all hostname verifier
Merge branch 'backlog/230' of https://github.com/telefonicaid/fiware-connectors into backlog/230
[CHANGE] new library for https protocol with ckan tests
Merge branch 'backlog/230' of https://github.com/telefonicaid/fiware-connectors into backlog/230

# By frbattid
# Via frbattid
* 'backlog/230' of https://github.com/telefonicaid/fiware-connectors:
  Add a line allowing all hostname verifier
Merge pull request #251 from telefonicaid/backlog/230

backlog/230 (into develop)
Merge branch 'develop' into backlog/207_212_fiware_service_path