more flexible makefile

Signed-off-by: Mattias Andrée <maandree@operamail.com>
update gitignore

Signed-off-by: Mattias Andrée <maandree@operamail.com>
install license

Signed-off-by: Mattias Andrée <maandree@operamail.com>
m

Signed-off-by: Mattias Andrée <maandree@operamail.com>