mono/mono — pull request #980 by StephenMcConnel (2014-04-03 23:43:42+00:00)
Title: Fix bugs in sizing TableLayoutPanel (Xamarin bug 18638)

Consider spans and absolute sizes in computing PreferredSize for
TableLayoutPanel.
Also fix bug in allocating unused width to SizeType.Absolute columns.

Change-Id: Ic5065b83ced8195d1c5be39087f33b0d632fc9a6