price bot that works with slack api

configuration:

1. upload the php files to a directory on your web server
2. create an outgoing webhook in slack
   • configure webhook to look for "troll,price" as the trigger words
   • name the bot whatever, most of the time the name is overridden
3. modify bot.php and add in your token given in step 2

usage: troll - a familiar but unwelcome face 'price ' to get latest quote, can equal: btx, polo 'price !' to get help 'price all' to print out all exchange quotes