Flexibel libs dir on windows

Add a cmake option to specify the libs directory folder to make it possible to move it to a different harddrive,

See merge request !81

adapt icon and splash screen to the new VCI logo and design



See merge request !80

New gl loader

on this branch glew was replaced by glLoadgen
Even though the build runs on all platforms, excessive testing should be performed (old opengl cards new ones, runtime tests etc.)
closes #20 

@moebius you probably want to check for code Quality before merging this one.

See merge request !66

Added const to getters in LightNode.hh

There are also some whitespace changes that my editor wanted to include on his own. Sorry for that.

See merge request !78

Extended branding to track packages with branding.

closes #40n

See merge request !76

documentation about making use of custom vertex attributes

(cherry picked from commit 833a6b80123a830940f7b27682d74f93513a47c4)

See merge request !75

Christopher Tenter authored Feb 28, 2016 and Jan Möbius committed Apr 08, 2016

(cherry picked from commit 833a6b80123a830940f7b27682d74f93513a47c4)

Removed FreeFont stuff



See merge request !73

Ignore .DS_Store files on mac



See merge request !74

Added include statement for scripts

closes #38 

See merge request !72

disable instancing when deactivating a vertex declaration

deactivate() should reset all attributes to the default non-instanced state. Otherwise attributes stay instanced and this can break the vertex layout.

See merge request !70

Fix obj assertion

this should fix #33

See merge request !68

fixes #37 by updating the tree model on object update



See merge request !67

* also added initialisation for om type autodetect which was missing

* also removed outcommented code fragment from obj loader