Correct captchagid key name for request body.
Merge pull request #454 from seanbr/master

Correct captchagid key name for request body.
Merge pull request #444 from gabrielmtzcarrillo/SteamInventory

Added: Add/Remove for Non TF2 Items
Merge pull request #455 from gabrielmtzcarrillo/SteamInventory

Quickfix - GenericInventory.cs