use defaults when already available instead of recalculating

Enyo-DCO-1.1-Signed-off-by: Cole Davis <cole.davis@lge.com>
fix spacing missing from final buffer calculation for GridList

Enyo-DCO-1.1-Signed-off-by: Cole Davis <cole.davis@lge.com>
update/fix DataRepeater and DataList samples and add DataGridList sample

Enyo-DCO-1.1-Signed-off-by: Cole Davis <cole.davis@lge.com>
add flag for enabling/disabling the transitions CSS for DataGridList and adjust LESS/CSS classes

Enyo-DCO-1.1-Signed-off-by: Cole Davis <cole.davis@lge.com>
add missing flag

Enyo-DCO-1.1-Signed-off-by: Cole Davis <cole.davis@lge.com>
Merge branch 'core' into fix-datalist-mousewheel-scrolling-issue
fix bugs where items weren't claimed after being added, childSize was being recorded incorrectly, height wasn't always updated in the correct scenarios and defaultPageSize wasn't calculated correctly in some scenarios

Enyo-DCO-1.1-Signed-off-by: Cole Davis <cole.davis@lge.com>
Merge pull request #474 from enyojs/data-repeater-fixes

Data repeater fixes