- Fix bug in history time axis when sec_init is not zero.
- Fix issue with time_beg and time_end uninitialized values.
- Add support for averaging with histfreq='1' by allowing histfreq_n to be any value
  in that case.  Extend and clean up construct_filename for history files.  More could
  be done, but wanted to preserve backwards compatibility.
- Add new calendar_sec2hms to converts daily seconds to hh:mm:ss.  Update the
  calchk calendar unit tester to check this method
- Remove abort test in bcstchk, this was just causing problems in regression testing
- Remove known problems documentation about problems writing when istep=1.  This issue
  does not exist anymore with the updated time manager.
- Add new tests with hist_avg = false.  Add set_nml.histinst.

- Add netcdf ststus checks and aborts in ice_read_write.F90
- Check for end of file when reading records in ice_read_write.F90 for
  ice_read_nc methods
- Update set_nml.qc to better specify the test, turn off leap years since we're cycling
  2005 data
- Add check in c ice.t-test.py to make sure there is at least 1825 files, 5 years of data
- Add QC run to base_suite.ts to verify qc runs to completion and possibility to use
  those results directly for QC validation
- Clean up error messages and some indentation in ice_read_write.F90

- Add prod suite including 10 year gx1prod and qc test
- Update unit test compare scripts

… tmB