Update plugin and manifest for SynthKit.

manifests/SynthKit.json

@@ -1,10 +1,10 @@
 {
   "name": "SynthKit",
   "author": "Jerry Sievert",
-  "license": "BSD 3-clause",
+  "license": "BSD-3-Clause",
   "websiteUrl": "https://github.com/JerrySievert/SynthKit/blob/master/README.md",
   "manualUrl": "https://github.com/JerrySievert/SynthKit/tree/master/docs",
   "sourceUrl": "https://github.com/JerrySievert/SynthKit",
   "donateUrl": "https://paypal.me/JerrySievert",
-  "latestVersion": "0.5.5"
-}
+  "latestVersion": "0.6.0"
+}

repos/SynthKit

@@ -1 +1 @@
-Subproject commit 74a2a806457738125e21bda14d6ce7a75e60b6fb
+Subproject commit f8e0db533247d035f290bb0f36e481600b44c07b