Change error output. Add some debug-info. Some whitespace changes.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code@4870 dfc29bdd-3216-0410-991c-e03cc46cb475
Get rid of a few compile warnings.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code@4871 dfc29bdd-3216-0410-991c-e03cc46cb475
ISceneNode::deserializeAttributes uses now old values for parameters which are not in the attributes (thx @entity for noticing).


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code@4872 dfc29bdd-3216-0410-991c-e03cc46cb475