Spanish translation fixies
Fix Issue 719: Calling Cards can be opened more than just one at a time
Further LLViewerMenu updates
Inventory Updates and Clean Up

Better viewed without space changes
Adds translatable inventory strings
ToolPie Frosting

Easiest read with Copy/Move detection and no space changes
Adds debug settings: DragAndDropDistanceThreshold, EnableGrab, ClickToWalk, ClickActionBuyEnabled, ClickActionPayEnabled
ClickToWalk was redefaulted to false, though if you are curious enough to read this, you should give it a try, it takes some getting used to but it might be fun.