updated build elevation mosaic tools and raster functions

2 new tools added to manage elevation data and create source/derived
elevation mosaic datasets.  New Raster functions were added and older
raster functions were updated.
Updates to tool in tool box

doucmentation changes and tool fixes for all tools
more fixes for missing stuff

matt
Updates for Pro
Revert "Updates for Pro"

This reverts commit dfe4bab27154f9c9cc072a2f01546ad35d3d6c2b.
Pro updates for Touchdown Points tool
Merge pull request #83 from mfunk/master

Updates for 8/25/2014