fix include_missing for nested hash
Add declared description
add include_missing description
update changelog
Added missing method all_or_none_of for the parameters DSL.
Merge pull request #816 from georgimitev/fix_nested_hash_include_missing

fix include_missing for nested hash
Allow both desc and description in the parameter DSL.
Routing methods dsl refactored to get rid of explicit paths parameter
Fixes #791