Fix irredit links in loadScene/saveScene docs.

git-svn-id: https://irrlicht.svn.sourceforge.net/svnroot/irrlicht/branches/releases/1.8@4477 dfc29bdd-3216-0410-991c-e03cc46cb475
Check return value of localtime() which can be NULL on some platforms

git-svn-id: https://irrlicht.svn.sourceforge.net/svnroot/irrlicht/branches/releases/1.8@4483 dfc29bdd-3216-0410-991c-e03cc46cb475
Fix cursor visibility update problem under Windows 8. Thanks to luthyr for pointing out this problem.
Ensure cursor will be showing even if the display value is pretty low.

git-svn-id: https://irrlicht.svn.sourceforge.net/svnroot/irrlicht/branches/releases/1.8@4496 dfc29bdd-3216-0410-991c-e03cc46cb475