ttrie-0.1.2.1: changelog.md

# 0.1.2.1 (November 2015)
	* Eliminate a redundant import warning on GHC 7.10
	* Loosen test-suite dependency bounds

# 0.1.2  (May 2015)
    * Add a 'member' convenience function

# 0.1.1  (April 2015)
	* Add 'fromList' and 'unsafeToList' functions
	* Add basic tests