Merged revision 3847 from 1.7 branch. Fix problems in textwrapping in CGUIStaticText. Did use wrong size and did ignore last word of the text. NOTE: this will need some more work now in trunk as trunk supports by now right-to-left text which probably needs similar fixes. 


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@3874 dfc29bdd-3216-0410-991c-e03cc46cb475