Adds tab_for_app method to tabs connection
Merge pull request #342 from davefp/tab_for_app

Adds tab_for_app method to tabs connection
why md5?
scrub invalid byte sequence

ref #345
update spec too
why md5?
scrubber filter spec

ref #345
ok 1.9.3, you are not in UTF world.
Merge branch 'invalid_bytes'

close #345
v2.7.9
adding a method for getting an application id from a user access token
Merge pull request #346 from kissrobber/master

I've rejected a pull request this undocumented API support before, but it exists for two years.
https://github.com/nov/fb_graph/pull/163#issuecomment-7010549

So now I consider this is already "official" enough.
v2.7.10
Merge remote-tracking branch 'upstream/master'
Why don't we handle all the mocks the same, shall we