bitbake: Add hg fetcher (from bitbake upstream)

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@2865 311d38ba-8fff-0310-9ca6-ca027cbcb966

bitbake/lib/bb/fetch/__init__.py

@@ -461,6 +461,7 @@ import svk
 import ssh
 import perforce
 import bzr
+import hg
 
 methods.append(local.Local())
 methods.append(wget.Wget())
@@ -471,3 +472,4 @@ methods.append(svk.Svk())
 methods.append(ssh.SSH())
 methods.append(perforce.Perforce())
 methods.append(bzr.Bzr())
+methods.append(hg.Hg())