- FBX::ImportSettings: fix initialization list order.
OgreMaterial: remove unneeded variable.
- Ifc: code cleanup, remove various non-needed variables as pointed out by gcc.
- FBX: avoid more gcc warnings.
Merge branch 'master' of github.com:assimp/assimp into gcc-fixes
Merge pull request #28 from assimp/gcc-fixes

Gcc fixes based on this build: https://travis-ci.org/assimp/assimp/jobs/6160384

silence gcc false positive warnings and fix real issues that were pointed out.