New pre-release 0.16pre3

This release contains a brand new API and application communication subsystem. Shared memory usage was removed as so as the named pipes in /tmp and lockfiles in /var. All communication is now done via TCP/IP sockets. Since this is a significant change, I'm very interested in your comments. Please give this release a try and send me a report (via mail or to forums). Thanks. Note that this release contains an obsolete
application developer's guide. The up-to-date one is going to be included in next release.