Porting to Drupal 7

Issue Summary

Hi,

I've started with a very simple coder (deadwood) style port of flag_friend, it's available on github:

http://github.com/electricant/drupal7_flag_friend

I'm still getting some errors thrown from flag module at the moment so can't really test it but I don't think it'll be a great deal of further work. The views integration may be a different matter though depending on API changes. Ctools integeation cannot be tested until ctools for d7 has been further developed.