Wishlist: conditional breakpoints

[timholy]

Suppose you have a loop,

for (k,v) in mydict
    # do some serious processing
end

Suppose an error happens for key "troublesome", and it so happens that this is the 247th key to be processed. It would be lovely to be able to set a conditional breakpoint, e.g.

for (k,v) in mydict
    @cbp k=="troublesome"
    # do some serious processing
end

[toivoh]

For now, you can use

if k=="troublesome"; @bp; end

But it's a good idea. I'll add the shorthand @bp k=="troublesome for the above.

[toivoh]

Updated METADATA.jl; fixes for #23 and #24 should be published now.