Reactivated fixed tests from skipped broken tests list

[holgerd77]

Just tested the tests marked as broken in the skipped tests list in tester.js.

The following tests are passing now and can be reactivated:

  'CreateHashCollision', // impossible hash collision on generating address
  'RecursiveCreateContracts',
  'createJS_ExampleContract', // creates an account that already exsists
  'CreateCollisionToEmpty', // temporary till fixed (2017-09-21)
  'TransactionCollisionToEmptyButCode', // temporary till fixed (2017-09-21)
  'TransactionCollisionToEmptyButNonce', // temporary till fixed (2017-09-21)
  'RevertDepthCreateAddressCollision', // test case is wrong
  'randomStatetest642', // BROKEN, rustbn.js error

Last test still failing is one test from ecmul_0-3_5616_28000_96.

[holgerd77]

No production code touched, just tests reactivated, will merge.