unxit build spec 8, 10 + 12
diff --git a/spec/unit/build.spec.js b/spec/unit/build.spec.js
index e9d81d2..224abb6 100644
--- a/spec/unit/build.spec.js
+++ b/spec/unit/build.spec.js
@@ -254,7 +254,7 @@
             });
     });
 
-    xit('spec.8 should fail buildProject if built with MSBuildTools version 4.0', function (done) {
+    it('spec.8 should fail buildProject if built with MSBuildTools version 4.0', function (done) {
         var buildSpy = jasmine.createSpy();
         var errorSpy = jasmine.createSpy();
 
@@ -286,7 +286,7 @@
             });
     });
 
-    xit('spec.10 should throw an error if windows-target-version has unsupported value', function (done) {
+    it('spec.10 should throw an error if windows-target-version has unsupported value', function (done) {
         var buildSpy = jasmine.createSpy();
         var errorSpy = jasmine.createSpy();
 
@@ -318,7 +318,7 @@
             });
     });
 
-    xit('spec.12 should throw an error if windows-phone-target-version has unsupported value', function (done) {
+    it('spec.12 should throw an error if windows-phone-target-version has unsupported value', function (done) {
         var buildSpy = jasmine.createSpy();
         var errorSpy = jasmine.createSpy();