Bumped version number to 2.0.0.
Bumped version number to 2.0.0.

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