Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
AddsPub/Sub protocol

Adds a test in libnanomsg to check the c bindings.
Adds the enums and a showcase test in main lib.
Adds subscribe and unsubscribe functions in main lib.
Removes erronous comments before test attributes
Adds Survey protocol

Adds a test in libnanomsg to check the c bindings.
Adds the enums and a showcase test in main lib.
Adds a set_survey_deadline in main lib.
Fixes unused_variables warning
Merge pull request #39 from blabaere/master

AddsPub/Sub protocol