Trebuchet : Fix cellsize for dynamic changes

When the grid size is changed, this logic does not take that into account.
Fix that by allowing the cellWidth/cellHeight to be set in onMeasure.

Change-Id: I58938eea806a527d1cb54786fa045181455fefff
Trebuchet: Add AF Translations

Change-Id: Iff61e1e450ae39f00eab39eaf593a9a76a77025d
Revert "Trebuchet : Fix cellsize for dynamic changes"

This reverts commit 6c740f9444f95c3c90d4bbcf67b1f303444b031d.

Change-Id: I58938eea806a527d1cb54786fa045181455fef32
Trebuchet: IT translations

Change-Id: I28b5a977aea528c80985a7392f849fa51b045e76