Clean up project file
Introducing: Xcode project files

One project file for each dependency (stormlib and bncsutil) and one
main project file (aura++.xcodeproj) containing the dependency projects.
Please note: the project file in StormLib/ is not the one produced by
cmake.
Introducing: Xcode project files 2

Second part
Merge branch 'master' of https://github.com/Josko/aura-bot
Reflect recent upstream changes
Add OS X frameworks to .gitignore
Adjust OSX build instructions
Merge pull request #15 from Argon-/master

Xcode project files