Redesigned moudule system

* Top level private APIs (e.g. jasmine.private.whatever) are no longer
  exposed
* jasmineRequire is no longer exposed
* core is self-booting
* Globals are automatically created in browsers. (They can subsequently
  be removed by user code if desired.)
* Globals are *not* automatically created in Node. An installGlobals
  function is exported instead. The jasmine package calls installGlobals
  unless configured not to do so.
* In Node, the same instance is returned each time jasmine-core is
  imported. A reset function is exported. It effectively resets all state
  by discarding the env and creating a new one. This allows mulitple
  sequential runs within the same process to be independent of each
  other, but does not allow multiple concurrent runs. (That probably never
  worked anyway.)

Fixes #2094

spec/helpers/integrationMatchers.js

@@ -42,9 +42,9 @@
                 : 'Expected runnable "' +
                   fullName +
                   '" to have failures ' +
-                  jasmine.private.basicPrettyPrinter(expectedFailures) +
+                  jasmine.pp(expectedFailures) +
                   ' but it had ' +
-                  jasmine.private.basicPrettyPrinter(foundFailures)
+                  jasmine.pp(foundFailures)
             };
           }
         };