Integrated targeting system.

Price, description, whether the equipment exists in the core plist at all ... for now somewhat provisional.
Fix scanner display bug introduced in 50895952

See aegidian.org/bb/viewtopic.php?f=9&t=14238 for description.
Merge pull request #48 from ErichRitz/scanner_display_bugfix

Fix scanner display bug introduced in 50895952
Fix a couple of display oddities in new corona
Modify mission scripts to use populator to add mission ships
New shipyard.plist key "renovation_multiplier"

Defaults to 1, which gives the current behaviour of 1% of ship cost at service level 80.
Adjust nova mission to use populator

Removes normal traffic from the system when player enters, making it less likely they will escape by following a wormhole.
Merge branch 'master' of github.com:OoliteProject/oolite into extra-hud-features

Need the high-precision coordinates to continue working on this branch
Fix a few bugs with integrated targeting system

Cost and techlevel (and indeed availability) provisional for now. Issue #31
Move target memory to weakrefs

Fixes previously unreported (but in retrospect obvious) bug where targets you'd never seen before could end up in your target memory.
Fix compiler warning
Fix populator bug, add new LANE_WPS region
Fix regression in rotational_velocity key for subentities
Fix combat detection
Allow player to save at any deterministically-added station, not just main.

(Saves market for station saved at as well as main. Probably should save market for all deterministic stations)
Saving: fix a couple of bugs in allowsSaving
Add tradeInFactor as a shader uniform for the player ship
Also update player proxy
Allow multisampling-based antialiasing in SDL mode

Graphically very expensive, likely to need a dedicated graphics card rather than a built-in one, so hidden setting "anti-aliasing" in GNUStepDefaults needed to enable it. It looks much nicer, though.

Presumably there's a way to do the same thing in Cocoa, but I've no way to test that.
Fix receipt of comms messages when docked or dead, fix excessive velocity on death screen