make plugin members class-local (do not use those from ParentClass)
removed members from modelloader class

the base-plugin classes shall remain pure virtual
*without* any member data
don't call modelloader->render()

instead use VBOs

TODO: implement VBOs for [multimodel]
removed init of (now) non-existant member
removed render() and compile() from modelloader
indentation / ordering
backported modelASSIMP2

it's really the code from modelASSIMP3 with different include headers
indentation
indentation script

TODO: add 'modelines' for vim & emacs
documentation (and TODO)
renamed VertexBuffer.stride to VertexBuffer.dimen

as this is really the meaning of this member
adapt to member-rename of VertexBuffer.dimen
fix typo in comment (FTBFS)
moved VertexBuffer into namespace "gem"
use gem::VertexBuffer

it has moved into a namespace!
fixed typo: ambiant -> ambient
document that some methods in gem::VertexBuffer require a valid context
early return on error
Do not make backups when re-indenting
notes on indentation/bracing