#191 Unable to sort in reverse order or reverse an array

[John Davidson]

The WikiTalk object BELArray has functions to sort but no ability to reverse the sort order or to reverse an array, sorted or not.

[John Davidson]

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Build 2.0.0.232 (SVN r1008)

Added functionality to BELArray for Reverse, ReverseSort and ReverseSortBy.

Added unit tests for the new functions and added new BELArray unit tests for Snip, Item and ToOneString