Updates from Nick.

Added support for OSG_TXP_DEFAULT_MAX_ANISOTROPY to override the default make
anistropy in textures.

src/osgPlugins/txp/TXPNode.cpp

@@ -103,7 +103,7 @@ bool TXPNode::loadArchive()
         return false;
     }
 
-	/*
+    /*
     if (_archive->loadMaterials() == false)
     {
         TXPNodeERROR("loadArchive()") << "failed to load materials from archive: \"" << _archiveName << "\"" << std::endl;
@@ -121,7 +121,7 @@ bool TXPNode::loadArchive()
         TXPNodeERROR("loadArchive()") << "failed to load light attributes from archive: \"" << _archiveName << "\"" << std::endl;
         return false;
     }
-	*/
+    */
 
     _archive->getOrigin(_originX,_originY);
     _archive->getExtents(_extents);