Workaround to remove visibility of navigation mesh due to GLSL rendering.
Backface culling issue with branch hallways, mirror property of model texture had to be reversed in order to remain visible. Has been corrected.
Fixed render distance issue.
Checked map for clipping issues.
Small fix; Lighting interior has been increased and light style changed to counteract grey / black / white interior natural darknesfs.
Merge pull request #4 from Giocovier/master

Multiple fixes, all documented.