new website style, and update after tiles-3.0.3 release.
proper trademark and logo attribute.

references: 
 - http://thread.gmane.org/gmane.comp.apache.tiles.devel/602
 - http://svn.apache.org/viewvc?view=revision&revision=1539491
 - http://thread.gmane.org/gmane.comp.apache.tiles.devel/599
 - http://www.apache.org/foundation/marks/pmcs#graphics


git-svn-id: https://svn.apache.org/repos/asf/tiles/framework/branches/TILES_3_0_X@1541483 13f79535-47bb-0310-9956-ffa450edef68