Defect fix

This release addresses a defect to handle unpublished Contentful references and add further documentation in README

update to allow for client application to define fetch client in options

Update contentful client to allow use of defined fetch from client

Add meta data to content references

Enhancements:

Add meta data to content references when fetching models

TS Compiler config

Update TSC config to compile to ES5 for older browser support (IE11)

Allow custom select operator when querying models

Enhancements:

Add ability to pass custom query select to getModels

Fix defects and add enhancement

Enhancements:

• Add description to Media entity

Defect fixes:

• fix getModel method to query with model id