Log Message:
games/endless-sky: update to endless-sky-0.9.14

Pkgsrc changes:

* Update the makefile to handle subdirectories in the cource code.
* Update the ImageBuffer patch to load images correctly.

Announcement:

0.9.14 Polish release

This is a "stable" release, focusing on bug fixes and polishing
the recent v0.9.13 release. New changes include the following

* Numerous typo fixes
* Fixes to how several missions are offered to the player
* Better suggestions of possibly incomplete conditions in some
  missions' "visit" dialogues
* Differentiation between two Remnant engines' reversing capabilities
* Certain Navy shipyards now stock the Dropship
* Ships that have no specified "drag" attribute default to 100,
  rather than causing crashes
* Weaponry that alters the ship's status conditions (e.g. ionization)
  now respects the required minimum value of 0
* The "interrupt fast-forward" preference defaults to off

Some minor improvements were added to help support plugin authors
and content creators:

* Quarg planets now have regional attributes to enable better
  targeting via missions
* Missions that fail to be instantiated print more informative
  messages in the error file
* Large numbers of missing image frames no longer pollute the error
  file

0.9.13: Unstable release

This is an unstable release, containing big changes that may
introduce new bugs.

Breaking changes:

* Starting conditions no longer automatically override the game's
  default start. Plugins that use a "start" node will need to make
  changes to restore the previous behavior.

Major new changes include the following:

* 70+ new missions in human and alien space
* Outfits can now be stored on planets, without needing to install
  them on a parked ship
* An overhaul of almost all human outfit images
* Players can now choose their starting scenario
* Spaceport news messages no longer include portraits by default
* Better handling for missing content definitions (e.g. from plugin
  removal)

Several features have been added to the game engine, for use by
plugins and other content creators. These include:

* Dynamic stopover selection will consider planets without spaceports
* A number of new outfit and weapon attributes, offering shield/hull
  multipliers, weapon aiming & firing overrides, percentage-based
  damage, and additional damage mitigation
* Arbitrary angles for hardpoints, engine flares, and fighter bays
* NPCs' objectives can now include provocation or capture
* Mission NPCs can be conditionally spawned or removed without
  needing to change the player's active missions
* Missions can react differently when the player aborts a mission,
  and when the player fails a mission
* Missions can give ships to the player
* Systems may generate environmental hazards, control the range at
  which ships enter, and be hidden on the map