hgview #9288 put tags in same column as log [in-progress]

hgview gtk was displaying tags on the tree. hgview qt displays tags in a column on the right. hgview gtk was better because it did not require to look at left and right to read the history.

done in1.9.0
load left1.000
closed by<not specified>
patch[qt4] move tags from dedicated column to the "Log" column [applied]