1.0.5

Merge pull request #10 from Garsooon/BugFixPatch1

**Fixes the following bugs**

- [wager] showing up incorrectly when getting a command usage prompt
- Stop fighters betting on themselves
- Prevent players from stopping the arena teleport by sitting or sleeping
- Stop fighters from dropping items during fights to dupe items
- /bet not checking for economy methods loaded and returning an internal error when ran
- Essentials method calling its self even when not loaded causing plugin loading errors

**Adds**

- Keep inventory for fighters
- Support for old ZCore economy officially
- Automatic version pulling for /fightabout command