Removed the type ErrorCode. StatusCode replaces the old ErrorCode instances
Changed '0' strings for 24 zeroes in RegistrationId and SubscriptionId - closer to XSD this way
Two FIXME P9 attacked, one fixed the other commented
Removed compiler flag -Wno-unused-but-set-variable and fixed the files that needed fixing
Merge pull request #203 from telefonicaid/hardening/status_code

ErrorCode
Merge branch 'develop' into hardening/zeroStrings
Merge pull request #206 from telefonicaid/hardening/zeroStrings

Hardening/zero strings
Merge branch 'develop' into hardening/fixme9
Merge branch 'develop' into hardening/compiler_flags
unit tests working
harness tests working with new StatusCode
OrionError now also with 'reasonPhrase' following 'code'
changed fixme text
CHANGES_NEXT_RELEASE
Merge pull request #207 from telefonicaid/hardening/fixme9

Hardening/fixme9
Merge branch 'develop' into hardening/compiler_flags
comment in CMakeLists.txt about compiler flag -Wno-unused-but-set-variable
Merge pull request #210 from telefonicaid/hardening/compiler_flags

Hardening/compiler flags
Merge branch 'develop' into hardening/one_less_parameter_for_StatusCodeFill
first draft for toString