1.0.0-beta.71

• Modified the behavior of computed metadata values to cache the value for a given document when using the => prefix. The previous behavior that evaluates a computed value every time it's accessed can still be used by prefixing with -> instead. In theory this change shouldn't result in any differences in behavior since documents are immutable in the first place (so caching wouldn't be any different from re-evaluating), but if you have computed metadata values that consider state outside the document (such as something like DateTime.Now), you'll need to switch those to use the -> prefix instead.
• Updated JavaScriptEngineSwitcher.Core and JavaScriptEngineSwitcher.Jint.
• Updated highlight.js used in Statiq.Highlight (#269).