LCC11 — Revise the Overview section of the specification to support the current approach to representation of the standards

The current version of the specification breaks the country codes for regions up into individual ontologies by region, and includes the U.N. M49 macro region codes, which are quite useful for implementations that only need a subset of the region codes. This should be reflected in the specification.

In addition, a sentence should be added at the end of the overview that states that there is no need, based on feedback from the user community, to provide the ODM XMI or UML XMI for the ontologies containing individuals for regions, only for the primary ontologies and country codes. Thus, the LCC 1.1 specification no longer includes those artifacts.

Minor language issues, such as the use of the term 'trigraph' and wrong reference to '630-4' rather than '639-4' in that section should also be corrected.

Update section 1.2, Overview to fix language and coverage issues

This update affects text only, and provides a more accurate representation of the contents of the specification and related artifacts than the LCC 1.0 version of the document.