[#240] Alters the location-id description

Feedback on location changes introduced in 1.04 has lead to a need
to clarify this description. Thread starts in issue #205
Merge pull request #242 from IATI/240-bug-fix-location-id-definition

[#240] Alters the location-id description
Merge branch 'version-1.04' into version-1.05
Merge branch 'version-1.05' into version-2.01