v1.1 - Saves & Music & Fixes

I have deployed an update for Cards'n'Castles that adds a few requested features, and fixes some issues discovered from player feedback.

Thank you for all the kind words and positive feedback (and the requests for improvements!) it really means a lot.

Here's the full changelist for the v1.1 update:

• Added save game system so progress is saved over multiple sessions.
• Added music that can be turned off in the main menu (by Komiku on FreeMusicArchive).
• Fixed cases where units can be deployed on top of each other, which can cause units to not act in battle.
• Changed card deploy behaviour for usability, card will now transform into unit when it's dragged over the deploy zone, and vice-versa, and be 'dropped' when mouse is released.
• Fixed blurred spearman and ram card textures.
• Added retry button during battle.
• Disabled the ability to play cards during a battle, since it was never truly intended and has issues. It is not required to complete the game and does not provide a significant strategical advantage.
• Removed option to pick Militia after first battle since it sets up for much harder following battles.
• Hopefully no new bugs introduced!

Reminder that the full source can be found on my Github, feel free to take a look for learning/interest purposes.