Fix typo.
Merge pull request #263 from PDAL/i262

Fix typo.
fix #261, only link libxml2 if WITH_LIBXML2 is TRUE
Merge pull request #265 from PDAL/issues/261-guard-linking-libxml2

fix #261, only link libxml2 if WITH_LIBXML2 is TRUE
Don't use stage in iterator.
Add NullPointBuffer.
Modify PointBuffer to behave correctly when used as a NullPointBuffer.
Remove dependence on stage for some iterators.
Remove access to stage in iterator.
vagrant will now checkout PCL "pipeline" branch
in PCLBlock, setJSON still exists, but is now used to pass the GeoJSON object as a string; setFilename is used to pass the filename
Merge pull request #267 from PDAL/no-stage-in-iter

No stage in iter
apply astyle to recent PCLBlock and Splitter updates
Turn on C++11 support.
Merge pull request #269 from abellgithub/cpp11

Turn on C++11 support.
Exclude pipeline_mosaic test when built w/o Python

The pipeline file `pipeline/mosaic.xml` includes a filters.programmable,
which depends on Python. This patch excludes the test when we are not
built with Python.
fixups related to the big change in acbellgithub's 24828059066a77f56be6bec002a605c5d95af266
more cleanups for 24828059066a77f56be6bec002a605c5d95af266 for filters.hexbin
more fixups to filters.hexbin for 24828059066a77f56be6bec002a605c5d95af266
Merge branch 'master' of github.com:PDAL/PDAL
Rename 'pdal query' to 'pdal diff' and add some simple
XYZ delta statistics for default output #273
Add word expansion (shell syntax handling) for filenames in pipelines on
non-Windows systems.
Use some C++11 and use the boost::property_tree namespace to simplify code
in Options.*