Support running jasmine within CSP (remove eval)

[fixes #503]

src/core/base.js

@@ -1,4 +1,9 @@
-getJasmineRequireObj().base = function(j$) {
+getJasmineRequireObj().base = (function (jasmineGlobal) {
+  if (typeof module !== "undefined" && module.exports) {
+    jasmineGlobal = global;
+  }
+
+  return function(j$) {
     j$.unimplementedMethod_ = function() {
       throw new Error("unimplemented method");
     };
@@ -6,12 +11,9 @@ getJasmineRequireObj().base = function(j$) {
     j$.MAX_PRETTY_PRINT_DEPTH = 40;
     j$.DEFAULT_TIMEOUT_INTERVAL = 5000;
 
-  j$.getGlobal = (function() {
-    var jasmineGlobal = eval.call(null, "this");
-    return function() {
+    j$.getGlobal = function() {
       return jasmineGlobal;
     };
-  })();
 
     j$.getEnv = function(options) {
       var env = j$.currentEnv_ = j$.currentEnv_ || new j$.Env(options);
@@ -95,4 +97,5 @@ getJasmineRequireObj().base = function(j$) {
       }
       return obj;
     };
-};
+  };
+})(this);