Clarify reference to Ontology Repositories as "Semantic repository implementation" (SRI)

[Lewis John McGibbney]

Comment from John Graybeal's comments at http://lists.deltaforce.net/pipermail/esip-semanticweb/2016/000656.html

Can we please change the wording to make the generic references different in some way (lower case, at a minimum; but “ESIP semantic repository implementation” for example would be entirely unambiguous, capitalized or not).

I would suggest we use Semantic Repository Implementation, therefore create the acronym SRI. This avoids conflicts with ESIP Semantic Repsiroty Implementation (ESRI).

[Lewis John McGibbney]

This issue is addressed via Commit d3507dd