Main features:
* Inclusion of RELEASE_NOTES and updated README
* Minor bug fixes (see list below)
* Some additional in code documentation updates

Several minor bug fixes:
* Small fix to budget interpolation
* Bilinear introplation fixes.
    1) Calculates dx and dy after conversion to indices
    2) Aligning handling of edge of grid with mos2k methods
* Removed unnecessary stations input argument in plr_new.main_camps
* Fixed typo in plr_new that was causing issues
* Fixes to Time.py for  handling of naming variables with otherwise identical
names.  Removed period information for dimension variable names.
* Additional fix to PhenomenonTimePeriod variable duplicate naming convention with wrong
period information appended to variable