repl: endl on exit

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
[make] shared library versioning

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
[cutes] exposed cutes.mkVariadic()

Initial purpose is to convert native function accepting array to
variadic js function

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>