Various bug fixes

Various bug fixes

We've just updated the game to the latest version of the HexWar Engine. This includes various bug fixes and performance improvements!

Change: The Bonus 'Twilight' Campaign is now available to all players without requiring an email registration.
Fix: Some sound effects not playing following the last update.
Fix: The campaign names did not always display correctly in the campaign victory display.

Add: Support for the Metal graphics system on all Apple devices, improving graphics performance.
Change: Updated the combat capabilities of Cavalry armed only with Pistols.
Change: Improved A.I. opponent.
Change: A reduction in the download size.
Fix: Missing some mount dismount button options.
Fix: An error preventing the 'Game Updates' text from appearing.
Fix: Some screen layout issues.

Improved: AI has received a pass to help improve performance.
Change: Some UI updates.

Fix: Units may sometimes have been unable to attack adjacent enemy huts or tents unless charging.
Change: When a general ends alone in a hex adjacent to an enemy, after enemy shooting, it now evades if possible, or is destroyed.
Fix: Some units were not getting their shock combat bonus in a charge combat.
Fix: Some time flank attacks provided no benefit in combat.
Fix: A rare crash which could occur after charging.

Fix: Some line of sight issues from high hill hexes across lower hill hexes.

Fix: Artillery can no longer cross fences.
Change: Updated some UI elements.

Fix: An issue that usually prevented cavalry from dismounting in some terrain (woods/scrub/marsh).

Fix: Improved memory management.
Fix: Improved hex tile Positioning accuracy.

Add: Game Speed options in Settings which includes 3 settings Standard, Slow and Fast.

Fix: An issue with combat analysis for close combat not anchoring correctly.

Fix: Could crash while loading on iPhone Xr.
Change: iPhone and iPad: Major improvement to the map zoom feature (use two finger pinch to zoom in/out).",
Changed: iPhone and iPad: The game is now optimised to used all the available screen space at the best screen resolution for each device.
- One some newer devices the game image was stretched.
- On some newer devices the game had a black border.
Note: An update is in development to better support the space around the 'notch' and the curved displays on iPhone X, Xr and Xs models.
Change: Game performance is much faster and graphical execution smoother.
Add: The ability to unlock all scenarios in the settings menu.

Fix: The ability to select enemy units while playing for unit information purposes.

Add: A whole new way to play, 'Historical Mode'. This is now an option on starting a new mission.
Add: Change log for all updates in the latest edition of the game.
Add: Change log to the help menu.

Fixed issues in the following missions:
- Averasboro
- Namozine Church
- Sahara!

Updated the balance of the Bonus mission and the 'Fort Fisher' mission within the 'Twilight' campaign.