#ifdef libxml2 stuff for when we don't have it
just pass in argv with a count instead of our own copy of arguments
move drivers.soci.* to drivers.sqlite for #201
Merge pull request #201 from PDAL/issues/201-rename-soci-driver

Rename current soci driver to sqlite driver, remove non-sqlite stuff
add md5'ing algorithm for #202
Merge pull request #202 from PDAL/issues/202-add-md5ing

Add md5'ing capability
make registerPluginIfExists private
make pdal info --stats myfile.xml --pipeline-serialization work #203
Merge pull request #203 from PDAL/issues/203-pipeline-serialization-info

pdal info doesn't do pipeline serialization stuff
fix up cpack configuration to have a 'make dist' command after configuration #204
Merge pull request #204 from PDAL/issues/204-cpack-configuration

Beef up packaging and install scripts
Implement #205 to turn on most common options by default
#define CPL_SERV_H_INCLUDED before including geotiff headers to make #206 work
Merge pull request #206 from PDAL/issues/206-libgeotiff-cpl_serv

#define CPL_SERV_H_INCLUDED to prevent conflict messages
provide implementation to resolve #196 by using binary encoding instead of integers for global_encoding
Merge pull request #196 from PDAL/issues/196-las-global_encoding

LAS driver fails to carry global_encoding around properly
doc updates for #207
add laszip note to dependencies
Documentation updates in prep for 1.0.0 #207
remove unused variable