Revision history.
asio version 1.10.3 released
Don't use EV_CLEAR when registering interrupter.

Fixes copy/paste error introduced in 3f473548a7d71012a77cd256a61034a505696958.
Fix shadow variable warning.
Avoid using newly-deprecated Winsock functions.
Merge branch 'master' of https://github.com/chriskohlhoff/asio