Updated fancyBox to v2.1.5

Source taken from https://github.com/fancyapps/fancyBox
Added jQuery validationEngine v2.6.4
Source taken from https://github.com/posabsolute/jQuery-Validation-Engine
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Added jQuery validationEngine v2.6.4
Source taken from https://github.com/posabsolute/jQuery-Validation-Engine
Merge branch 'master' of https://github.com/vassilis-karapatakis/cdnjs