Bump ant target to coincide with AndroidManifest.xml
Better .gitignore
Include tinc as a submodule, version 1.0.23
Add openssl as submodule at version 1.0.1f
Don't download the ndk ourselves
Create res/raw dir
Use tinc master for compilation (as done for previous releases of tinc GUI).
Improve Makefile for sub-modules.

Automatically init/update submodules from Makefile. Better mrproper.
Improve documentation.