File system adapter :sparkling_heart:
Merge pull request #125 from lotus/filesystem-adapter

File system adapter
Mention about the limitations of entities that inherit from other entities
Handle relative and absolute paths for file system adapter
FileSystem adapter: ensure to safely query when the database is new. Thanks to @gogogarrett for catching this problem
Lazy-loading Model::Configuration#mapper
Delegate the Mapper configuration to Lotus::Model::Config::Mapper
Merge pull request #129 from joneslee85/lazy-mapping

Lazy-loading Model::Configuration#mapper
Merge pull request #127 from joneslee85/patch-issue-120

Mention about the limitations of entities that inherit from other entiti...
[ci skip] Remove table aliasing from README, as we aren't going to ship it now. Ref #127
Prepare for v0.2.0
Merge branch 'master' into 0.2.x