CB-8735: Fixing the regex so that it's more compliant with Java package rules

spec/create.spec.js

@@ -27,7 +27,8 @@ describe("create", function () {
     var valid = [
         "org.apache.mobilespec"
       , "com.example"
-      , "com.42floors.package"
+      , "com.floors42.package",
+      , "ball8.ball8.ball8ball",
     ];
     var invalid = [
         ""
@@ -40,6 +41,10 @@ describe("create", function () {
       , "_underscore.anything"
       , "underscore._something"
       , "_underscore._all._the._things"
+      , "8.ball",
+      , "8ball.ball",
+      , "ball8.8ball",
+      , "ball8.com.8ball"
     ];
 
     valid.forEach(function(package_name) {