Merge branch '1_6_2'

Updated screenshot.

More convenient defaults.

Update docs and screenshots for 1.6.0.

Documentation updates in prep for version 1.5.

Refactor scalePopulation, to first handle inactive starting zombies, …

…and then aggro'd and spawn-generated ones.

Skip manual repack that stops reflector after repacking should also disable (manual) reflector stop button.

Fix zombie density calculations.
Tweak drawing transparencies.

Refactor extractCoordinates().
Refactor getEntitiesOfTypes( param []) to just take a single type per call.

Include non-idle/inactive zombies.
Draw Pickable entities.
Tweak Huge zombie drawing.

Tweak Huge zombie drawing, VODs, Fog.

Found a bug in quads floor density calculation.

Directly draw VODs and Huge zombies when updating the final map image, rather than cache 2 mostly transparent layer and have to merge them.

Mostly refactored VOD position tracking.

Rename Type ID Templates to types.
Refactor Huge zombie types.

Fix bug of not stopping reflector when skipping manual repacking but the stop-after-repack checkbox is checked.

Lazy init navigation and population data.

Refactor MapPosition into SaveReader. Not into LevelEntites, for now at least.

Refactor out VodSizes enum.
Refactor out VOD ID_TEMPLATEs.
Refactor level entity ID_Templates/types into LevelEntities.

Merge branch 'modify_manager_state'

Improved exception handling for extracted save reading.

Updated some packages.