create spec/lib/ss/debug_spec.rb
update debug_spec.rb setup test cases
update spec/lib/ss/debug_spec.rb add test case

String case
update spec/lib/ss/debug_spec.rb add test case

Array case
update spec/lib/ss/debug_spec.rb add test case

Hash case
update spec/lib/ss/debug_spec.rb add test case

Fixnum case
fixed typo: ".debug" to ".dump"
Merge branch 'lib_debug_spec' of github.com:gouf/shirasagi into gouf-lib_debug_spec
update lib/ss/debug.rb nest namespace
Merge branch 'gouf-lib_debug_spec'