code refinements for BeanLoader class and it's nested classes
moved persistence properties to Configuration class
improved MetaCreator.Builder and MetaCreator classes to add and use
persistence properties from Configuration class
removed unused commented code
added comments to data source PoolConfig class field
removed comments to MetaCreator.Builder class methods
removed unused comments
added comments to MetaCreator.Builder method
added comments to MetaCreator.Builder methods
added comments to MetaCreator.Builder methods
added comments to MetaCreator.Buider class method
added comment to MetaCreator.Builder class method
added comment to MetaCreator.Builder class method
added comment to MetaCreator.Builder class method
added comment to MetaCreator.Builder class method
added comments to MetaCreator.Builder class method
added and improved comments to MetaCreator.Builder class mehods
added comments to MetaCreator.Builder class method
improved comment on MetaCreator.Builder class method
improved comment on MetaCreator.Builder class method