Update EnemyEncounter command strings.
Update OpenShop command strings.
Update ShowInn command strings.
Update EnterHeroName command strings.
Update Teleport command strings.
Update Memorize/RecallLocation command strings.
Update some command strings.

*EnterExitVehicle
*SetVehicleLocation
*ChangeEventLocation
*TradeEventLocations
Update StoreTerrainID/EventID command strings.
Update EraseScreen/ShowScreen command strings.
Update TintScreen/FlashScreen command strings.
Merge pull request #31 from MarianoGnu/master

Update event command strings