Bevel modifier had several problems. These should be fixed now. The bevel
modifier in editmode cannot have 'apply to cage' checked as the modifier
cannot possibly support mapping. Further, custom data preservation has been
turned off temporarily, but will be added back in soon.
The following is a commit of Levi Schooley's bevel code and
the bmesh library it depends on. The current editmode bevel has
been replaced with a new per edge bevel function. Vertex beveling is
also availible.
To set weights for the modifier to use, use the ctrl-shift-e shortcut on either edges
or vertices.
Recursive beveling is turned of for the time being.
