v2.14.0: Merge pull request #551 from oat-sa/release-2.14.0

Release 2.14.0

Fix Wrong Thousand and Decimal separator in float response

internal reference : https://oat-sa.atlassian.net/browse/TAO-1726

TAO 3.0.0 Release of taoQtiItem Extension

QTI item model

Requires extensions

• taoItems >= 2.6