Add Account.resubscribe method

Ignore-this: 17b5750f60f426cdaa197ccdb7d2fb99

darcs-hash:20140807154718-56b4d-9b1fe4bfbf591715c7b99abcb8284662bdf5b2ed
Updated Install.windows

Ignore-this: 3d1ef05bff59aead03155fbaf92f11ed

darcs-hash:20140809095014-56b4d-fae5c4b7ca4c9a90e40d87940f03ee23c41acc6c
Fix linking with OSX frameworks

Ignore-this: cec8b03363cbdd528bfea549711ed81e

darcs-hash:20140811081705-56b4d-f0c6a45f3dc44377564d698be5be27ad61a23357