Appended argument timeout to change value.

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
Bump version.

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
Fixed version in Changes.

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
Merge pull request #15 from mkouhei/devel

release 0.5.5