Create configure.ac, an autoconf script to generate ./configure
This will be needed by a subsequent patch to properly handle
--build and --host, and more tests, when the kconfig stuff will
be installed pre-built.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
The overview.txt file has evolved into more than just an overview.
Split it into chapters, and include the misc tutorials.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
