New Explosion system code changes.
New explosion system yaml changes.
Fix descriptions.
Streamline isValid check.
Crate actions can now define required prerequisites.
Update mods (only d2k and RA affected) crate actions to take tech levels and prerequisites into account.
Added YamlException to GiveUnitCrateAction if no units are defined.
Fix legacy map importer. Fixes #6143.
disallow bots on poland raid
disallow bots on burlesca
Update CONTRIBUTING.md
Merge pull request #6212 from pchote/mapimport

Fix legacy map importer.
Merge pull request #6213 from ScottNZ/balance

Update crushing values for ra vehicles
Merge pull request #6189 from UberWaffe/6066_CratePrerequisites

6066 Crate Prerequisites
show a user friendly description of the starting unit template

closes #6209
bring back the automatic wiki update

closes #5900
use the new orabot account
Merge pull request #6215 from Mailaender/poland-raid-bots

Disabled bots on maps with separate land masses between destructible bridges
Make FMVPlayer in TD use a completely black background

Fixes #6211.
Make FMVPlayer in RA use a completely black background