Test against 2.2.0
Lotus::Model.configure to return self
Fix bug in memory adapter offset

Before this fix, offset(n) returned the last n records, while it should
return all records except for the first n records
Merge pull request #109 from rhynix/memory_adapter_offset_fix

Make Memory::Query#offset behave like SQL
Reset mapper to NullMapper

This allows raising exceptions upon calling any methods on it

[resolve #107]
Merge pull request #110 from joneslee85/meaningful-mapping-missing-exception

Reset mapper to NullMapper
Add Entity#update method

This allows mass-assign attributes
Merge pull request #92 from joneslee85/patch-3

Test against 2.2.0
Implement entity attribute inheritance thanks to @joneslee85
Merge branch 'master' of https://github.com/bennyklotz/model into bennyklotz-master
Merge branch 'bennyklotz-master'
Added extra test case. Ref #105
Merge pull request #111 from joneslee85/add-entity-update-api

Add Entity#update method
Allow mapping DSL to take file path. [resolves #108]
Merge pull request #114 from joneslee85/mapping-path

Allow mapping DSL to take file path
Fixed entity when an attribute is false
Merge pull request #118 from AlfonsoUceda/master

Fixed entity when an attribute is false
load utils/class for Mapping::Collection
Merge pull request #121 from joneslee85/fix-missing-utils-load

load utils/class for Mapping::Collection
Duplicate Entity and Repository