Bugfixes and AI changes. Fixed the station "stutter" bug. Other bugs, solved some AI problems.

Defense ships are now present in sectors 1, 2, and 3. "Defense" and "Heavy" ships now present, Defenseships (Vultures) have upgraded weapons and engines, Heavy ships (Warthogs) fire sunflare rockets and use upgraded engines. Flag captures have been reset. Capturing a flag now yields 1,000,000 (million) credits for every online character of the team that succeeds. A recovered (returned) flag yields 5000c to the team.

Please continue to report any bugs, problems, or strange game behaviour. Thanks.