Fixed WebAdmin's request parameters.

Also added doxycomments on what they really contain.
WebAdmin honors the [WebAdmin].Enable setting.

This fixes #234.
APIDump: Documented HOOK_CHUNK_AVAILABLE.
APIDump: The undocumented hooks template now has 8 params.

This allows for easier copypasting, hooks with less than 9 params don't need an extra copy-paste for a new param entry.
APIDump: Documented HOOK_CHUNK_GENERATED.
APIDump: Added example to HOOK_CHUNK_GENERATED.
APIDump: Fixed undocumented hook param generator.
APIDump: Documented HOOK_CHUNK_GENERATING.
APIDump: Documented HOOK_CHUNK_UNLOADED.
APIDump: Documented HOOK_CHUNK_UNLOADING.
APIDump: Documented HOOK_COLLECTING_PICKUP.
APIDump: Documented HOOK_CRAFTING_NO_RECIPE.
APIDump: Fixed info missing from cCraftingRecipe.
APIDump: Documented HOOK_DISCONNECT.
APIDump: Updated the template for undocumented hooks.
APIDump: Documented HOOK_EXECUTE_COMMAND.
APIDump: Documented HOOK_EXPLODED.
APIDump: Documented HOOK_EXPLODING.
APIDump: Documented HOOK_HANDSHAKE.
Stairs crafting fixes

Fixes #233
Added Stone Brick Stairs crafting recipe and added alternative crafting recipes for Nether Brick Stairs and Quartz Stairs