Merge branch 'master' into Mapping
added shadow-map

- added shadow-map
- compiles and smap gets initialized/generated
- generation ist stil incorrect (cam, light-dir, ...)
seperated shaders

- shadowmap now uses own shader
- not used only defined
- changed a bit in tyes. needs refinement
- new indices need to be read out and used.

refs #495 @3h
minor fixture
Merge remote-tracking branch 'origin/Mapping' into tessallation
changed num mountains and height
Merge branch 'Mapping' into tessallation
fixed import
Merge branch 'tessallation' into iqm
array-objects get initialized

- initialized array-objects
- still need to be rendered and collected to a VertexBufferObject

refs #482 @2h
revising preliminary inflexible button handling callback
forgot file
modified camara-height-limit to reflect later game better
added height function
Restructured Node constructors. Ripples are getting worse! (╯°□°）╯︵ ┻━┻
Fixed the hell out of that snow!
merged
Merge branch 'Mapping' into tessallation
cam now moves with height.

- cam still has NaN-Issues
Merge branch 'ui' into tessallation