VERSION: Bumped version to 6.0.0.0
configure.in, control.in: Updated openssl version dep to
Removed GNU build tools related generated files.
Removed Balabit related files.
Removed unnecessary Debian related files.
Addedd CI scripts as submodule.
rpm: Added spec file from RPM build.
travis: Added Travis YML configuration file.
Followed changes in CI scripts.