Merge pull request #8 from iMagooo/master

Changed add/tip minimum to 1 DOGE
Don't crash the bot if the user enters an invalid Steam ID
Update a user's name in the database if they change it
Update a user's name in the database if they change it
Merge branch 'master' of github.com:petschekr/SteamDogeTipBot
Fixed typo bug
Merge pull request #1 from petschekr/master

Merge latest changes