Add LH transform to LLVector3
Add DebugShowUploadCost
Make LOD generation on model preview less finnicky.
Remove error level based LOD generation.
Better framing of model before upload.
Better error handling for model uploader.
Remove [COST] argument from model upload menu item.
Remove L$ check from model upload menu item being enabled.

implement determinant for 4x4 matrices
fix materials for collada <polygon>

First stab at making model importer act more like scene importer.  Upload button still doesn't work.

DEV-41080 - wriggle some method implementations out into header implementations, just enough so that llbboxlocal can be a unit test rather than an integration test.  Slightly dubious about whether it's worth it.

Result of svn merge -r107256:107258 svn+ssh://svn/svn/user/phoenix/license_2009_merge into trunk. QAR-1165

HAVOK4 IN TEH HOUSE!!11!!ONE!!
If it is broken blame Joel for not fixing the loginassetdatabaseinventorygroupIM server instead of working on this.

QAR-448

Result of svn merge -r71162:71205 svn+ssh://svn/svn/linden/branches/new-license into release. only changes files which are not deployed or the comments section of code.