support setting data record lengths for LAS that are not just the fix…

…ed set defined by the point formats

test depends on python being around

update test to reflect current conditions

oracle test updates

update drivers.oracle.reader to set data for dimensions that are requ…

…ested through the PointBuffer rather than dictating the PointBuffer, which was wrong

update oci driver to use PointBuffer schema rather than Stage schema

fix up filters.inplacereprojection to do its operations on the PointB…

…uffer, not the Stage

remove the note to stdout about how many points are written. We want …

…pcpipeline to take in stuff via stdin and write out pipeline serializations via stdout. notices should probably go to stderr

add a Metadata::to_xml method, this is duplication of the pipelinewri…

…ter static method of the same name, but I think these should probably be pulled closer to the objects themselves than out in some auxillary class

remove temppath option. you can change this with the TMPDIR environme…

…nt variable anyway