Allow options to be set with a proc/lambda

[unreal]

I needed to be able to set the default gravatar image based on the actual object instance.

example:

class User
  # default image is the first letter of the user's first name
  gravtastic default: lambda { |u| "http://assets.example.com/#{u.first_name[0]}.jpg" }

[VadimPushtaev]

That's cool, but you should update doc as well.

[unreal]

Hope this looks ok!

[terracatta]

Wish this could have been merged. Need this functionality as well.

[alejorivera]

Hey! Just wondering why this hasn't been merged? Would love to have this functionality as well.

[VadimPushtaev]

Looks like the author abandons this project. He ignores letters and comments about this for a while.

[vjcharles]

I thought I had push rights to this repos but it seems my boss got them as I committed it on his machine ages ago. Perhaps some of the other contributors given access by @chrislloyd can chime in: @xaviershay, @gohanlon, @moorage, @salted, @ jeffkreeftmeijer, @achiu.

If that doesn't work, I suppose someone passionate about this project can take over with their fork... Good luck!

[vjcharles]

@jeffkreeftmeijer, ping.

[hayksaakian]

@vjcharles looks like you have the collaborator tag here no?