[log] IDEA-116267 files -> items in the structure filter
(cherry picked from commit f04ec34)
[log] IDEA-116100 Fix Splitter leaks.
(cherry picked from commit be23034)
IDEA-116318 Mercurial Log: on very first context menu invocation NewBranch etc actions are available

*your action templatePresentation should not be modified in update action, use e.getPresentation() modification instead
(cherry picked from commit 8b7f449)
update threads icons

(cherry picked from commit 0b4bf6c354706925281e82c2b5eb10d35d7eceec)
Retina for general icons

(cherry picked from commit 5f8bccf3f407a052b1f12943764426017738b267)
Retina for toolwindow icons

(cherry picked from commit 6f8c745e110e9209ecba71ac6793318547616f2f)