refs #6406 removed font-size:1px from calendar increment region and added to ie6 specific class as font-size:1em. Added ie6 specific dijit_a11y class to set font-size larger so +/- incrementers will be visible. 
refs #6406 removed font-size:1px from calendar increment region and added to ie6 specific class as font-size:1em. Added ie6 specific dijit_a11y class to set font-size larger so +/- incrementers will be visible. 

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@13352 560b804f-0ae3-0310-86f3-f6aa0a117693

Sam-Cummins/delite,Sam-Cummins/delite,harbalk/delite,kitsonk/delite,kitsonk/delite,harbalk/delite