Please update README or add wiki page for Mac users

First of all, thanks for the great work.

It took me 2 hours to figure out how to run it on Mac. Sorry I am not familiar with C++ or wx framework.

It will be cool if you can update the README.md or add a new wiki page to list the steps of running it on Mac.

Here is a few step I did tonight:

git clone the code on Mac, open the project in Xcode
use home-brew to install wx: brew install wxmac
run the project in Xcode. there should be no compiling error but you won't get anything log, since your account cannot capture the network traffic
build&archive the project. In organizer, click 'Distribute..'-> Export as Application. Save the 'Hearth Log.app' to somewhere and copy it to /Application
register an account on http://www.hearthlog.com/, copy the Upload Key
create a file with 1 line content: UploadKey=, save it to ~/Library/Application Support/Hearth Log/config.ini
sudo /Applications/Hearth\ Log.app/Contents/MacOS/Hearth\ Log
Then start the game and play with others. After you quit the game, the log will be saved and uploaded to website. You can check the log at ~/Library/Application Support/Hearth Log/log.txt

Hope it helps.

chippydip / HearthLog