New Features as of version 1.07

  Minor augmentations.

  April 15th, 2010

  In the C++ area: upgraded from OpenContainers 1.6.4 to 1.6.5:

   * Added binary search capability to the OpenContainers: this is code
     from the original M2k plus its test and output

   * Augmented the CircularBuffer class from OpenContainers: the put
     method used to return void, it now returns a T&, indicating where
     it put the new value in its Array.

   * Added a Combinations generator, similar to the Permutations
     generator.  Usage is pretty straight forward:
        Combinations c(n,k);  // Allow to compute all n choose k comb of 1..n
        do {
           int* a = c.currentCombination();
           for (int ii=0; ii<k; ii++)
              cout << a[ii] << " ";    // print current combination
        } while (c.nextCombination());

     Added a test which allows both performance testing and
     correctness testing.

  In the Python area:

   * Added XMTime.py: Allows a NON-MIDAS user to use XMTime completely
     divorced of X-Midas.  The newer version of opalfile uses this
     (see below)

   * upgraded to a newer version of opalfile.py which fixes a few bugs.
     We have added xtime.py, which allows a user to use the opalfile
     module without needing X-Midas access to XMTime.  Also updated so
     that opalfile can read OpalArrays:
       {1,2,3} instead of requiring the keys: {"0":1, "1":2, "2": 3}

     Fixes:
       1. Allow OpalTable list syntax { value, value, value } as well
          as mixed { key=value, value, key=value... }

       2. Parse embedded quotes in quoted key names, links and values
          more robustly explicitly matching the trailing quote skipping over
          escaped quotes (formerly simple greedy and non-greedy .* matches were
          used)

       3. Correctly parse string values followed by comments also
          containing quotes (before it would include part of the comment
          through use of a greedy .* match)

       4. Allow numeric values that do not require a trailing comma to
          be directly followed by a comment , e.g. D:123//comment ... (formerly
          the comment would be included)

       5. Fail when a key name within quotes does not have both quotes
          and require that non-quoted key names be proper identifiers

  Upgraded the ptools option tree to reflect new changes.