dev/v2.4.2

[cayb0rg]

Post v2.4 Updates

Conditional Question Feature

Old PR: #77

Adds

• Conditional node text based on number of visits to a node and/or items in inventory. If a player meets the requirements for more than one question, it will choose the one the player most recently met the requirements for.
  • Different headings for different node types
  • Updated creator's guide with additions

Unreachable destination checker

• Checks if any of the destinations are unreachable (such as when they require items that are never given or are not given enough of)
• Uses a breadth-first search with individual path histories

[clpetersonucf]

#81 was branched off this branch and the commit history here has been fully merged in. I'm closing this branch, since given the scope of the changes the semver for this release should be 2.5.0 instead of 2.4.2.