Update VE core submodule to master (c5f4f78)

Also update tools for changes in VE core.

New changes:
e4de14b Make tools use commands
e029817 Make getToolsForNode place primary commands first

Change-Id: I66575ee6d49e6b2f5a5f789978da98bb55e6dc5e
Correctly insert or update citations based on template option

When using a tool that opens a citation or citation transclusion dialog,
the dialog shouldn't use edit mode unless the template in the node and the
template the tool would insert match.

Bug: 63452
Change-Id: I34a5a2da576247f4046da45f742bccc3cec22c5a