Clarify that G2 refers to an Open Street Map Node

http://support.iatistandard.org/entries/30360498-New-Location-Location-Id-element
[#28] Rename Agency Level to Organisation Level
Merge pull request #29 from IATI/28-document-category

[#28] Rename Agency Level to Organisation Level
[#30] Move generated codelists into clv1 and clv2 directories
[#27] Add note about UNSALB webiste
[#21] Update mapping of feature-designation/@code
[IATI/IATI-Standard-SSOT#7] Update LICENSE
[IATI/IATI-Standard-SSOT#40] Reorder ConditionType
Resets Open Street Map name

This vocabulary should be Open Street Map and the node/way/relation can be given in the code
[#36] Explain how to construct OpenStreetMap code
Merge pull request #36 from IATI/OpenStreetMapFix

Resets Open Street Map name
Merge branch 'version-1.04' into version-2.01