intending to take over timezone-series, timezone-olson-th

Hi, I've tried pinging Yitzchak Gale on Github regarding these libraries, which have been removed from Stackage. I am using them and I'd like to make them compatible with the latest dependencies. So according to the protocol from the Haskell Wiki, I am hereby announcing that I will take over the packages in 6 weeks. Regards, Janus