[README] Known problems

[ruyaoyao]

For some reason, the account verification has been failed for few months.

Tried regenerate source code for thrift lib, composed encoding part on login process.

None of them is working, if you have found a solution please contact me. Thanks.

[ruyaoyao]

Login problem has been resolved. Thanks to @fimex-dev

[ruyaoyao]

sendImage still not working, waiting for fixing.
found the possible fix, https://goo.gl/Nt19JG.

[ruyaoyao]

Longpoll seems to have some problem #8
I will implement some new functions sometimes next month.

[ruyaoyao]

June 23rd, 2016
It appeared that LINE has been updated their service and the application which blocking old version from reading message text from longpoll message. If you encounter similar problem, please do pull my latest commit.