Add filter to sort points by Morton order, and kernel to expose this as
an app
Implement filters.attribute -- setting of point dimension using Polygons and OGR #533
#include <ogr_api.h> for OGRRegisterAll() in GDALUtils.hpp #533
handle GDAL <= 1.10 #533
rearrange some includes #533
LAS 1.4 Support. Refactoring of LAS/LAZ reader/writer #534
Merge pull request #537 from PDAL/add-morton-order-sort

Add filter to sort points by Morton order, and kernel to expose this as an app
Merge pull request #533 from PDAL/issues/533-attribute-filter

`pdal attribute`
Use read instead of get for strings to avoid problems with embedded
newlines.
use cxxabi ifndef windows
move consts to anonymous namespace rather than static member vars
move MAX_DATA_SIZE to anonymous namespace too
another reference to MAX_DATA_SIZE
Merge pull request #543 from PDAL/issues/540-demangler-windows-test

use cxxabi ifndef windows, closes #540
Merge pull request #544 from PDAL/issues/541-static-const-init

move consts to anonymous namespace rather than static member vars, closes #541
Merge pull request #545 from PDAL/issues/542-numeric-limits-const

closes #542
will not even try to visualize if PDAL_HAVE_PCL_VISUALIZATION not present
oops, still need the guard for now
check if visualization requested in Sort and Random as well