do a proper check to find out of PointSourceId dimension is available for #193
p2g writer
drivers.qfit.reader
Fix #194, default to specified offsets instead of throwing an exception when their reprojection fails
don't throw in filters.hexer's destructor
Merge pull request #195 from PDAL/issues/195-reproject-offsets

when filters.inplacereprojection reprojectOffsets fails, default to specified offsets rather than throwing an error
Merge pull request #193 from PDAL/issues/193-populate-pointsourceid

populate_pointsourceid is broken if there's no PointSourceId dimension
do a proper check to find out of PointSourceId dimension is available for #193
p2g writer
drivers.qfit.reader
Fix #194, default to specified offsets instead of throwing an exception when their reprojection fails
don't throw in filters.hexer's destructor
drivers.text.writer
Merge branch 'master' of github.com:PDAL/PDAL

Conflicts:
	doc/pipeline/index.txt
update nanoflann
remove ticks
update blocksize parameter
Merge branch 'master' of github.com:PDAL/PDAL
make IndexedPointBuffer based on nanoflann instead of FLANN to remove external dependency #176
fix up dimensionality so both 2d and 3d indexes work properly