chore(docs): remove excess indentation from code blocks

dgeni-packages 0.10.0-rc.5 has a fix for this problem, so this commit updates
to that version.
Adds a new e2e test to prove this is fixed.

Closes #8963

docs/app/e2e/api-docs/api-pages.scenario.js

@@ -37,5 +37,15 @@ describe("doc.angularjs.org", function() {
       var code = element.all(by.css('tt')).first();
       expect(code.getText()).toContain('guest!!!');
     });
+
+    it("should trim indentation from code blocks", function() {
+      browser.get('index-debug.html#!/api/ng/type/$rootScope.Scope');
+
+      var codeBlocks = element.all(by.css('pre > code.lang-js'));
+      codeBlocks.each(function(codeBlock) {
+        var firstSpan = codeBlock.all(by.css('span')).first();
+        expect(firstSpan.getText()).not.toMatch(/^\W+$/);
+      });
+    });
   });
 });

npm-shrinkwrap.json

@@ -1142,7 +1142,7 @@
       }
     },
     "dgeni-packages": {
-      "version": "0.10.0-rc.3",
+      "version": "0.10.0-rc.5",
       "dependencies": {
         "catharsis": {
           "version": "0.7.1"
@@ -1197,42 +1197,12 @@
             }
           }
         },
-        "dgeni": {
-          "version": "0.4.0-rc.2",
-          "dependencies": {
-            "dependency-graph": {
-              "version": "0.1.0",
-              "dependencies": {
-                "underscore": {
-                  "version": "1.4.4"
-                }
-              }
-            },
-            "di": {
-              "version": "0.0.1"
-            },
-            "optimist": {
-              "version": "0.6.1",
-              "dependencies": {
-                "wordwrap": {
-                  "version": "0.0.2"
-                },
-                "minimist": {
-                  "version": "0.0.10"
-                }
-              }
-            },
-            "q": {
-              "version": "0.9.7"
-            },
-            "validate.js": {
-              "version": "0.2.0"
-            }
-          }
-        },
         "esprima": {
           "version": "1.2.2"
         },
+        "estraverse": {
+          "version": "1.5.1"
+        },
         "glob": {
           "version": "3.2.11",
           "dependencies": {
@@ -1244,9 +1214,6 @@
         "lodash": {
           "version": "2.4.1"
         },
-        "marked": {
-          "version": "0.2.10"
-        },
         "minimatch": {
           "version": "0.3.0",
           "dependencies": {
@@ -1725,7 +1692,7 @@
     },
     "grunt-jasmine-node": {
       "version": "0.1.0",
-      "from": "grunt-jasmine-node@git://github.com/vojtajina/grunt-jasmine-node.git#fix-grunt-exit-code",
+      "from": "grunt-jasmine-node@git://github.com/vojtajina/grunt-jasmine-node.git#ced17cbe52c1412b2ada53160432a5b681f37cd7",
       "resolved": "git://github.com/vojtajina/grunt-jasmine-node.git#ced17cbe52c1412b2ada53160432a5b681f37cd7"
     },
     "grunt-jscs-checker": {