U4-1752 - Add GetPreValueAsString(id) method to the @Umbraco helper
U4-3744: Make it possible to make individual selections while still selecting the entire text on first click
U4-4510 nuget targets file creates an invalid path in the property group

That should fix this one properly now
Cleaned up the code a bit
Fixes: U4-4520 Issue: MultipleTextStringValueConverter returns an empty string array due to mismatched XML value format
Merge branch '7.1.0' of https://github.com/umbraco/Umbraco-CMS into 7.1.0
Merge pull request #332 from arknu/7.1_U4-3744

U4-3744: Make it possible to make individual selections while still selecting the entire text on first click
Fixes file name casing
Fixes file name casing
fixes missing semi-colon
Merge branch '7.1.0' of https://github.com/umbraco/Umbraco-CMS into 7.1.0
Fixes issues relating to adding ability to sort pre-values, had to update all property editors that use the shared sortable pre-values, ensure the list items are an array and then sorted.
fixes U4-4517 Color picker not showing colors
Fixes: U4-4455 Javascript error with single quotes in literals
Fixes: U4-4455 Javascript error with single quotes in literals

Conflicts:
	src/Umbraco.Web.UI/umbraco_client/Editors/EditScript.js
Replaced "retreive" with "retrieve".
Replaced "retreive" with "retrieve".
Replaced "retreive" with "retrieve".
Replaced "retreive" with "retrieve".
Replaced "retreive" with "retrieve".