show okeanos icon for unknown os machines
updating machines icons
- new states (click, hover)- sprite images for all states- minimized files with pngcrush
css sprites for machine icons, hover/click interaction for machine icons
machines glossy images
remove old firewall code
display firewall information, Refs #661
Remove variable used for testing
add connect option to standard/icon view
Refs #671
add check for windows OS.
Refs #471
fix ie and opera hovers for the user menu.
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