Update log and project settings. (#47)

Update logo and project settings.

Author: yaohaizh

jdtls.ext/javaProject.json

@@ -0,0 +1,6 @@
+{
+    "projects": [
+        "com.microsoft.jdtls.ext.core"
+    ],
+   "targetPlatform": "target.target"
+}