0001189: Re-assign hot keys 0 thru 6 to line up with the icon placement.
Arch: Restored length property of walls

Walls can again be based on no underlying object, and be
only defined by length, width and height.
Arch : Added wood sections presets to structures
Arch: Set wall and structs default units to mm
Draft: Small label fix
Arch: Added steel profiles to structs
Arch: Small fix in walls
Draft: Better interface for setting hatch patterns
Draft: Small fix in dimensions
Arch: Added Tool property to Structs to define an extrusion path
Exposed vector negative to python
Arch: small fix in IFC importer
Draft: removed unnecessary uses of DraftVecUtils
Draft: Fixes bugs from last commit
document License and LicenseURL properties now appear in doc properties dialog
Arch: small fix to IFC importer
Set default license for new files to All rights reserved
Revert "Set default license for new files to All rights reserved"

This reverts commit f5cbde11d2debeae37f8842b588dd4b1518f6948.
Merged master