[lua-factory] store operation
[lua-factory] remove operation
[lua-library] grl.lua.(modules) and lua-library

* New folder, lua-library to better organize the lua modules
* 'grilo' main module is now 'grl'
* the oauth and json modules are inside lua table at 'grlo' (e.g
  grl.lua.json.string_to_table(...) )
[lua-flickr] With the new standard grl.lua
[fix] configs from source may be null - fixed

Info messages of optional/required keys - fixed
[feature] checking lua deps before loading source