move hook into src

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

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

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

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