bnc#887225: OOXML import: Correctly apply table style for lastRow.

nMaxColumn and nMaxRow are indexes, so use size() - 1.

Change-Id: I20055e55cf2464710fe553fb8067bad13a339084
Do not prefer bandRow over firstCol/lastCol, nor the same with bandCol.

Change-Id: I0c573d721212c870e9ecc99ba5e8494073e09aaf
Unit test for cell properties, where lastRow is used in table (bnc#887225)

Change-Id: Ia11dadcbedf6acc035b2d86da39a115bdb298591