Merge pull request #206 from telefonicaid/bug/203

bug/203 (into release/iotplatform-v1)
Fix the events TTL parameter and add multi-sink how-to

Conflicts:
	flume/README.md
	flume/conf/cygnus.conf.template
Merge pull request #209 from telefonicaid/bug/195_release_iotplatform-v1

Fix the events TTL parameter and add multi-sink how-to
bug fix for issue 214
bug fix for issue 214
bug fix for issue 214
bug fix for issue 214
bug fix for issue 214
bug fixed and tested in CI instance
bug fixed for cygnus hadoop. Tested in hadoop environment
Merge branch 'develop' into bug/214
Merge pull request #220 from telefonicaid/bug/214

Bug/214 (into develop)