initial standards implemented + new docs like how to build apps

keystore.properties.example

@@ -0,0 +1,8 @@
+# Copy to keystore.properties and fill in. That file is gitignored; this one is not, so never
+# put real passwords here.
+#
+# storeFile is resolved from the repository root.
+storeFile=gearslip-release.jks
+storePassword=
+keyAlias=gearslip
+keyPassword=