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 'Opening Shots!' Campaign is now available to all players without requiring an email registration.
Fix: Some sound effects not playing following the last update.

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.
Fix: Missing some mount dismount button options.
Fix: An error preventing the 'Game Updates' text from appearing.
Fix: Some screen layout issues.
Fix: Invalid font selection on some buttons on some platforms.

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.
Change: Improved map zoom.
Change: Faster A.I. execution during larger missions.

Fix: Artillery can no longer cross fences.
Change: Minor UI updates.

Fix: Cavalry can now dismount in terrain.

Fix: Minor map changes to St. James Church scenario.

Fix: Some issues locking/unlocking some In-App purchases.

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

Fix: An issue were some scenarios would have the wrong side selected.

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

Fix: An issue with the restore button not working as intended.

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: Chickamauga Campaign: Sheridan's Stand objective update.

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

Update: Changes to the UI layout.

Add: Brand new 8 mission Chickamauga purchasbale campaign
Add: A whole new way to play, 'Historical Mode'. This is now an option on starting a new mission
Add: 'Historical Mode' preference to the settings menu
Add: Change log for all updates in the latest edition of the game
Add: Change log to the help menu

Update mission balance.

Fixes an issue that prevented scenario from unlocking.

Balance updates.

New splash artwork.  Grammar / typo corrections.  Game balance updates.