hgview #9290 put branch names on heads in the log column [validation pending]

hgview gtk was displaying a green tag with the name of the branch on the changeset that was the head of a branch. hgview qt displays the name of the branch in a column on the right and makes one look for the information in different places. moving the column to the left is a minimum.

appeared in<not specified>
done in1.3.0
load left0.000
closed by<not specified>