first approximation for Rush integration
useHttps as a global variable in the rest library (needed for rush http headers)
working harness test for 'rush' (accumulator impersonating Rush)
untabified ngsi10.updateContextRequest.append.valid.xml
Removed 'default' traces for accumulator
Removed old leftover sleeps in rush.test
typos
changed the bahavior of when to send notifications with http/https
Update CHANGES_NEXT_RELEASE

Added the issue number
Merge pull request #349 from telefonicaid/task/rush_preparations

Task/rush preparations
merged with develop
Merge pull request #355 from telefonicaid/feature/251

Feature/251