moves the global flickr helper method to a module

[jkraemer]

The gem shouldn't declare a global flickr method by default. I moved it to a helper module which can be included where necessary.

[hanklords]

I do not like this : it will break people code. The flickr helper is not causing any problem (as far as I know). Even if your solution is better if it had been like that from the begining,

[jkraemer]

It doesn't cause problems per se of course, but adding methods to Object just for convenience is generally considered bad coding style. Maybe merge it this whenever you release a new major version?