heat map no longer activates audio playback (it is meant as secondary visualizer)
solved problem in visualizers where segments where not always shown, by ignoring non-downloaded files in the same way as when plotting ancestry.
heat map: added shadow to markers
added heat map demo
server saves its port number to disk, and visualizer loads it automatically. visualizer on remote non-unix machine not supported (smbclient is used).
tentative solution for getting port number from windows
getting port number on windows now works
updated .gitignore
manual merge of upstream/master