add info when making debian package

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
support python 2.6

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
add is_object() method

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
change api of is_container(), response is status code to boolean

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
increase version and update documents

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
Merge branch 'devel'