Switched symbols package to use MyGet
Switched symbols package to use MyGet

SymbolSource is closing down its hosting for private packages.
https://mailchi.mp/7a56bd7c1db9/symbolsource-private-repository-shutdown-on-feb-18

leekelleher/umbraco-doc-type-grid-editor,leekelleher/umbraco-doc-type-grid-editor,leekelleher/umbraco-doc-type-grid-editor