Update NEWS.md: link fix

rm blank line

untar into new directory

v2.8.0 bump (#248)

* version 2.8.0 bump

* NEWS link

copyright year update

fix manifest

update doxygen config with doxygen -u

new emoji-data.txt location (fixes #181)

NEWS for 2.4, updated version numbers (which I forgot in 2.3, grrr)

Merge branch 'master' of https://github.com/JuliaLang/utf8proc