Framework update doesn't update src/core

[oliverfoster]

Expected Behaviour

src/core should be deleted before running installDependencies https://github.com/adaptlearning/adapt_authoring/blob/7ccd9915b5611e9e1fac0e9c7e4b700a38ee9613/lib/installHelpers.js#L467-L470

Actual Behaviour

A git reset is performed, but this will not update src/core https://github.com/adaptlearning/adapt_authoring/blob/7ccd9915b5611e9e1fac0e9c7e4b700a38ee9613/lib/installHelpers.js#L537

Steps to Reproduce

1. update an AAT with a separated src/core

Versions

• Authoring Tool Version: current
• Framework Version: >=5.17.0
• Node.js Version: any
• MongoDB Version: any
• Operating System: any
• Browser: any

[taylortom]

Will get this into the v0.11.0 release