Local author and blog celebrity Peggy Gavan launches her new book of stories about cats and their place in the history of New York City.  The 19th century was a tough time to be a stray cat in New York, but some lucky strays were adopted by men of all walks of life and became feline celebrities.  The author's blog, The Hatching Cat, has been featured in Newsweek magazine and in The New York Times.  Copies of The Cat Men of Gotham: Tales of Feline Friendships in Old New York will be available for purchase and signing.