Update packaging documentation

Change-Id: I722215ccfe21446147ad51817faab042b22f2676
Update metadata for 2.3.0-dp1

Change-Id: I52411cf4ed34ca9636292c2b31c40c811634486a
Remove NMakefile. CMake is now the build system for Windows

Change-Id: I5ccf0369a3cfaa57feada3261ce2abe03a6b7aa0
Remove 'myevent.h'

Nothing is using it..

Change-Id: I87275cb14e6b4109a5625628abae6fd2b2f550c7
Remove win32/config.h

Change-Id: I2fcaf69e1ee80a23b9069c42309608010e3250f5
Makefile.am: Bundle cmake stuff

Change-Id: I5a58529c254f7d3284e80000ba484587a76f1b14