changes in connector_raw to facilitate providing human readable values; bugfix in connector_raw for other data sources: better handling of misformed api calls
merged with devel
stripping string
changed api parementers
merged with devel
changed user endpoitn to use device_inventory collection
"format pretty changed"
* Added map_to_users API parameter to allow researchers to find out which scanned device belongs to which user
* Added the possibility to read the users from json responses
* Added additional column to the csv response to identify the users
fixed issue with database class when not using a replica set.
questionnaire comments in csv format modified
Merge branch 'devel' into questionnaires_v2

* devel:
  fixed issue with database class when not using a replica set.
added device_inventory
Merge branch 'questionnaires_v2' of github.com:MIT-Model-Open-Data-and-Identity-System/SensibleData-Service into questionnaires_v2

* 'questionnaires_v2' of github.com:MIT-Model-Open-Data-and-Identity-System/SensibleData-Service:
  fixed issue with database class when not using a replica set.
removed unused device_inventory
changed the language of informed consent to the language of user's choice instead of hardcoded danish
whitespace here and there
bumped version to 0.1.21
updated CHANGELOg
whitespace fixes
fixed api-breaking change of requiring language parameter