CPaneContainerImpl - Added PANECNT_GRADIENT extended style for gradient background

git-svn-id: http://svn.code.sf.net/p/wtl/code/trunk/wtl@600 4beafcb9-bf40-0410-b8f5-b741cf90ec0e
atlsplit.h - typo in comment

git-svn-id: http://svn.code.sf.net/p/wtl/code/trunk/wtl@601 4beafcb9-bf40-0410-b8f5-b741cf90ec0e