Alpha 6.1.7 Patch

Another patch to fix a couple more reported issues.

• Fixed a couple issues relating to some of the crashes. This should greatly reduce how often the game crashes for most users. If you encounter a crash with this version please let me know.
• Fixed an issue with saves getting corrupted when resetting campaign or endless progress if done before leaving the main menu.
• Fixed units carried in siege standing back up but not moving after the siege unit was killed.
• Fixed an issue that caused the archer in archer blocks to be walking in place.
• The 'no siege' level modifier now also removes the siege units and upgrades from the list of new units to bring in over time.