Fixed CharField and BooleanField at Contact, PlanActual Classes.

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
Fixed undefined-variable at PlanActual Class.

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
Fixed bad-continuation in 0001_initial.py.

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