Add header for extra header for target
Add x-relayer-header for extra headers, 'urlencoded'
Change the level of 'Persistence Completed' to debug
Change level for 'persistence' to info and show the state of the task
Show first n char from result body in logs
Set state to error instead of completed
test fix for no completed tasks -> error
Merge pull request #152 from telefonicaid/error_state

Set state to error instead of completed
add test to Extra Header
Allow extra headers to be 'x-relayer-'
Add extra headers in the right place
bug fix about filtering X-relayer headers
Merge pull request #151 from telefonicaid/extra_encoded

Extra encoded header
Firmas añadidas al package.json
Replace opType by op
Modify comment
Improve logger. Log message about start up status
Replace error by info
Consumer should call done on error. Listener should pass err as an argument when an error arises on start up
Format and Document ConfigBase