-RM-298-MR-Port OpenWalnut to OSG 3.2
OpenWalnut now compiles on OSG 3.2. BUT several newly introduced changes still cause problems:
- Something is weird with the transparency bin (no depth-write/no depth test)
- Semantics of setArrayBinding has changed. We need to ensure that the bindings get set AFTER the array has been set
- No BIND_PER_PRIMITIVE: we need to adapt several codes acording to this.
(from redmine: created on 2013-08-26, closed on 2014-03-17, precedes #303 (closed))