Documented new features for release 2.1.0.
Documented new features for release 2.1.0.

tiran/expat,libexpat/libexpat,libexpat/libexpat,libexpat/libexpat,libexpat/libexpat,tiran/expat,tiran/expat,libexpat/libexpat,libexpat/libexpat,tiran/expat