Incorrect docstring for MeshEntity.entities(dim)

[Thomas Hughes]

I think the docstring for def entities(self, dim) in pre.i should be like the one in MeshEntity.h, i.e.,

'''Return array of indices for incident mesh entities of given topological dimension'''

instead of its current docstring (""" Return number of incident mesh entities of given topological dimension""").

[Anders Logg (Chalmers)]

Removing milestone: 1.7 (automated comment)