New compiler

I just finished moving from gcc to clang compiler. The reasoning for this change is that after August, Android will require all updates to support ARM-64 architecture, and GCC does not support this in Android’s Native Development Kit (NDK).

I also took the time to change the build system in Android from a custom one to Pelya’s. He is the one that ported SDL 1.2 to Android’s NDK and this makes much easier to support multiple platform types such as arm7, arm64 and x86 in a single APK package.

Now I can start working to fix some bugs, like in the stage selection after beating a stage and keep changing RockDroid into it’s own identity.