More and more lazy loading...

I've spent a little while to make Kay load modules in more lazily manner, then I've got faster result on cold start, so I'd like to share the result with you.

Basically, I've made this test in the same way as described this entry.

Kay(changeset:4a854c31abbc)

10-25 05:33PM 31.791 / 200 344ms 544cpu_ms
10-25 05:34PM 07.998 / 200 354ms 544cpu_ms
10-25 05:34PM 37.308 / 200 355ms 563cpu_ms
10-25 05:35PM 00.452 / 200 336ms 525cpu_ms
10-25 05:35PM 27.638 / 200 332ms 525cpu_ms
10-25 05:40PM 45.837 / 200 365ms 544cpu_ms

Now Kay gets significant faster result! I'm planning to release Kay-0.3.0 soon.