Backwards compatibilty

Overview of the compatibility between v1 - v2 of T1C-GCL and T1C-JS

	T1C-GCL v1.x	T1C-GCL v2.x
T1C-JS v1.x	OK	OK, will use v1 fallback endpoint, only v1.2.5 functionality available
T1C-JS v2.x	NOK, will return error during initialisation until T1C-GCL upgraded to v2.x	OK

Initialising JS v2.x with an installed GCL v1.x will result in the following error:

new T1CLibException(400, '301',    'Installed GCL version is not v2 compatible. Please update to a compatible version.', client)

• HTTP status code: 400 Bad Request

• Error code: 301

• Error message: 'Installed GCL version is not v2 compatible. Please update to a compatible version.'

Attached to the error is a minimal client, which can be used to download a compatible GCL version.