Added missing methods and documentation to the Date class according to
the ECMAScript specification
Added browser compatibility information
Merge branch 'master' into ECMAScript-262-Compliant (ignoring the reverts, because they actually belong to ECMAScript-262-Compliant)
Updated ArrayImpl to make it compile again according to the new
definition of the Array Class
concat does not require the arguments to be arrays, they can also be
single values, in which case, concat behaves like push.
Added some unit tests for Array, as adapted from the test262 suite. Note
that at this point, a lot of those tests are failing.
ArrayImplTest: added tests for shift, reverse and slice
Added tests for Array.sort
Merge branch 'master' into ECMAScript-262-Compliant