Update VE core submodule to 04d67d2ec817e6f9d8c983570f6080ee7acd1110

New changes:
bac2081 Update OOjs UI to v0.1.0-pre (0f50cdc46c)
08eaf66 Update context on transact, in addition to select
6151ffb Add class to internal item nodes
7d0062d Propagate destroy calls down to children of branch nodes
04d67d2 Use transaction comparison to decide to render or not

Change-Id: I86fb35b5863ed6d0d0ecd884df05b7dc8ff3756d