doc: add p2-mop.png from p2

This is potion specific, bad name
fix mk-release process

tools/mk-release.sh now takes an optional -cCROSS arg, or other CC args
patch libuv for w64-mingw32: s,-lphlpapi2,-liphlpapi,
use different windows libuv-11.dll name and package it (with the import lib)
package test files on windows
use zip on windows, not tar.gz
TODO: pkg on darwin
fix various dependencies