NEWS entries for 1.5.1 and 1.5.2
NEWS entries for 1.5.1 and 1.5.2

rcsanchez97/libbson,paulmelnikow/libbson,bjori/libbson,bjori/libbson,paulmelnikow/libbson,ajdavis/libbson,mapr/libbson,ajdavis/libbson,mapr/libbson,paulmelnikow/libbson,mapr/libbson,bjori/libbson,paulmelnikow/libbson,mongodb/libbson,mongodb/libbson,rcsanchez97/libbson,ajdavis/libbson,paulmelnikow/libbson,rcsanchez97/libbson,mongodb/libbson