+Keep track of remote branch heads in Mercurial.
+With this extension installed, Mercurial gains one new feature: when you pull
+from a repository listed in .hg/hgrc's [paths] section, you get output similar
+ @ 3[tip] 7c2fd3b9020c 2009-04-27 18:04 -0500 durin42
+ o 2[default/default] 030b686bedc4 2009-04-27 18:04 -0500 durin42
+ o 1[stable/default] c561b4e977df 2009-04-27 18:04 -0500 durin42
+ o 0 d8d2fcd0e319 2009-04-27 18:04 -0500 durin42
+What this output is showing is that the head of the default branch in a
+repo at path 'stable' is c561b4e977df, and the head of default in the
+repo at path 'default' is at 030b686bedc4. This is accomplished by sending
+a single extra request to the Mercurial server after the pull is complete.
+The nature of this request (branchheads) requires that the server be
+This extension should work properly with paths from the schemes extension
+included with Mercurial 1.4 and later. Other extensions which perform varying
+kinds of manipulation on the repository path may not function as expected.