Squashes a compiler warning (unused variable).
Closes #35.
Fixes a typo in src/CMakeLists.txt
another reference update
Replaces "count" with "1" in units strings.

This should let us use UDUNITS-2 (2.1.14, released on 2010-01-29) that
is installed on pacman.
Addressing #100.

- Skip requested times before the last record in ts and extra files.
- Make sure that 2D cumulative fields are saved and re-loaded when appropriate.
  (This should ensure continuity of cumulative fields in extra files.)
Fixes typos in vfnow.py.
Fixes netCDF error reporting (pismv and SSA tests).
Merge branch 'dev' into try-new-putatdepth
updating scripts so they seem to run; see issue #152