Not STK but if anyone knows, how to create OS X app bundles

Sorry for asking here but I have tried to get some info on this and have failed miserably and since it was STK's wiki that offered the info to move a step forward I'm hopping someone has some insight.
I'm trying to package Me&My Shadow and Supertux so that I can create an application bundle for OS X, I had several problems with the dependent libraries that I managed to overcome due to finding about dylibbundler ( I was using otool manually and always failed). After running the tool and copying the libraries to the proper destination, the application crashes without errors or warnings.
I think it's related to the data folder, that is not in the same directory as the executable and in nowhere did I configure the folders path but I'm not sure.
So, anyone has some steps on how to create an application bundle with proper settings? Or some documentation that I can follow since I can't find anything to use. I've looked at Apple's documentation but I can't seem to get things to work.
Also is there any way to see why a bundle fails to start? I've tried opening the bundle in the Terminal but no message is shown and I have no crash report.
One final issue I'm having, the Info.plist and PkgInfo files are supposed to be placed inside the "Contents" folder of the bundle but if I do that my bundle is reported as broken and doesn't start, if I move those files to the bundle's root the application starts but crashes before I see any screen or anything else.
And should I mention that I'm doing this bundle by hand since I couldn't find any instruction on how to do that with XCode, almost all I find are for older versions and the ones I saw for version 4 don't work or make no sense with the XCode project I have for Me & My Shadow. And I can't seem to understand how XCode works
So, help!
I'm trying to package Me&My Shadow and Supertux so that I can create an application bundle for OS X, I had several problems with the dependent libraries that I managed to overcome due to finding about dylibbundler ( I was using otool manually and always failed). After running the tool and copying the libraries to the proper destination, the application crashes without errors or warnings.
I think it's related to the data folder, that is not in the same directory as the executable and in nowhere did I configure the folders path but I'm not sure.
So, anyone has some steps on how to create an application bundle with proper settings? Or some documentation that I can follow since I can't find anything to use. I've looked at Apple's documentation but I can't seem to get things to work.
Also is there any way to see why a bundle fails to start? I've tried opening the bundle in the Terminal but no message is shown and I have no crash report.
One final issue I'm having, the Info.plist and PkgInfo files are supposed to be placed inside the "Contents" folder of the bundle but if I do that my bundle is reported as broken and doesn't start, if I move those files to the bundle's root the application starts but crashes before I see any screen or anything else.
And should I mention that I'm doing this bundle by hand since I couldn't find any instruction on how to do that with XCode, almost all I find are for older versions and the ones I saw for version 4 don't work or make no sense with the XCode project I have for Me & My Shadow. And I can't seem to understand how XCode works

So, help!
