If a data collection covers the whole world the micro map in the search
results will only show a portion of the world because the zoom level is
set to 1 in these cases.  This change positions the micro-map for
whole-of-world views so that it at least shows Australia and the
surrounding areas.
Refactored a bit
Refactored a bit more
Fixed spaces
Merge pull request #476 from aodn/issue_406

If a data collection covers the whole world the micro map in the search