correct some urls and other in README.markdown
add activesupport to dependency
Merge pull request #67 from eitoball/correct_urls_in_readme

Correct some URLs and other in README.markdown
Merge pull request #68 from eitoball/add_active_support_to_dependency

Add ActiveSupport to dependency
[NEW] 3.0.6
add __use__ keyword to include other format definition
add value_humanizer to i18n-ize header values
update rails 4.0.0 gemfile lock files to comma 3.0.6
yield model instance in __static_column__ methods's block
Merge pull request #69 from eitoball/add_use_keyword_to_include_other_format

Add __use__ keyword to include other format definition
Merge pull request #71 from eitoball/update_ruby_4_gemfile_lock_files_3_0_6

Update rails 4.0.0 gemfile lock files to comma 3.0.6
Merge pull request #72 from eitoball/yield_model_instance_in_static_column

Yield model instance in __static_column__ keyword's block
Merge pull request #70 from eitoball/add_value_humanizer

Add value_humanizer to i18n-ize header values
[NEW] 3.1.0 after recent features/patches, thanks guys
[NEW] Update version used in README
[NEW] Add code climate badge to README
[NEW] Adjst climate badge in README