[meld: 12/12] Merge branch 'dirdiff.fast_insert' into 'master'

[Kai Willadsen <kaiw src gnome org>]

commit d27c1bcf6fee6b2c06911a5eb4acf94f7755ca05
Merge: 4350aaae 5750d705
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sun Sep 2 00:27:14 2018 +0000

    Merge branch 'dirdiff.fast_insert' into 'master'
    
    dirdiff.fast_insert - make append faster avoiding use of set_value
    
    See merge request GNOME/meld!22

 meld/dirdiff.py          | 44 +++++++++++++++++++---------
 meld/tree.py             | 74 +++++++++++++++++++++++++++++++++++++-----------
 meld/ui/cellrenderers.py | 12 ++++----
 3 files changed, 94 insertions(+), 36 deletions(-)
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