Creating new wmf/1.23wmf22 branch
Update VE core submodule to latest master (74353d9)

New changes:
af131d3 Clean up ve.dm.SurfaceFragment#isolateAndUnwrap a bit
b064ae8 Convert language name to lower case when looking for i18n file
f16dcac Fix ve.dm.SurfaceFragment#getSelectedNode
0fe1152 Clean up lots of minor things in SurfaceFragment
aec3043 Add excludeInsertion to translateRange()
f930950 Add excludeInsertion property to SurfaceFragment
a7ddd89 Exclude insertions in ve.dm.SurfaceFragment#isolateAndUnwrap
8108a0f Remove zh-[hk|tw] in favour of zh-han[s|t]
74353d9 Update OOjs UI to v0.1.0-pre (729c7bbe31)

Bug: 63828
Change-Id: I7aaebb071d544aec069d5ddab68740d93aed5bf4
(cherry picked from commit aeec009c147c3a9ffe5359e093c094226149b059)
Fix JS error when opening VE on redirect page

Change-Id: I95dd2dc2c52ffa3d420a579592e84001bd2b10e8
(cherry picked from commit 989fd6214cf851e86bb4155f0fea6da008fcfab8)
Pass required params to open for save dialog

Change-Id: Ib2e8f6255544894d54d9a89a579241b40c58ef90
Update VE core submodule for cherry-picks to make math inspector work

Use new dm.Surface method for checking undo history state
(hasPastState -> hasBeenModified).

New changes:
38776df [BREAKING CHANGE] Refactor history state methods to better suit uses
0c5238c Add system to dm.Surface for staging changes
8f0077c Only hide popups on selection change
1ff6c8d Create ve#contains
92be9e2 Prevent pasteTarget selection while already selected
b3e5759 Make ve.dm.Surface#breakpoint not crash

Change-Id: I5437e837f0b66a3094a7c1c43c91fcdd17b10783