fixed verifyCredentialsLocallyWithSuccessBlock: by handling both cases 1) no account was set 2) use a new account with same username as before former account invalidation, fix https://github.com/nst/STTwitter/issues/228
fixed verifyCredentialsLocallyWithSuccessBlock: by handling both cases 1) no account was set 2) use a new account with same username as before former account invalidation, fix https://github.com/nst/STTwitter/issues/228

nst/STTwitter,siburb/STTwitter,noppefoxwolf/STTwitter