Remove Pirates Den, closes #227
Beta trial Secluded Oasis, closes #224
Add Icebound, closes #222
Add Avalon Funland to Destroy, closes #221
Remove Blocks: Destroy the Dynamite, closes #217
Remove Sand Wars: DTE, closes #192
Add Secluded Palace, closes #216
Add Wit's End, closes #212
Remove Icy Peaks TDM, closes #211
Remove Academy, closes #195
Beta trial Gridlock 2, closes #197
Fix invalid map name
New Deathmatch rotations, closes PR #205
Re-add Glacial Impact to TDM rots

(forgot to add this in)