Upgraded distribute to setuptools 0.9.8
Added a tool, emisTrendMotionChart.py, and updated the README.
Fixed the entry for emisTrendMotionChart in setup.py
Merge branch 'master' into develop
Made list parameters default to the empty list instead of None
Avoided a call to logging.basicConfig() on other.controlfile import
Made Edb.create() use shutil's copytree instead of distutils's
Merge branch 'master' into develop
Fixed some bugs in the sourcedb module and added a test case
Added a SourceReader and SourceWriter class in a new dbio module.

- The base classes of these two, BaseReader and BaseWriter, are very
  suitable for reuse.
- Example usage:

      from pyAirviro.edb.edb import Edb
      from pyAirviro.edb.dbio import SourceReader, SourceWriter

      src_edb = Edb('REF', 'airviro', 'globcopy')
      tgt_edb = Edb('REF', 'airviro', 'myedb')
      with SourceReader(src_edb) as reader, SourceWriter(tgt_edb) as writer:
          for source in reader:
              # do something with source
              writer.write(source)
Added python interface for Airviro stations
Merge branch 'develop' of github.com:dsegerss/pyAirviro into develop
Added python module for Airviro station database
Minor fixes/additions
Merge branch 'master' into develop
Added a EmfacReader/Writer to dbio and improved the documentation
Moved the Source emissions from dicts into lists

- The 'activity_emis', 'subgrp_emis', and 'subst_emis' attributes of
  the Source class is now deprecated and will produce a warning if
  used.
- The new list attributes that contains the emissions are
  'activity_emissions', 'subgrp_emissions', and 'subst_emissions',
  corresponding, respectively, to the former dictionaries.
- A new instance method of the Source class, 'lookUpSubst', can be
  used to look up a substance emission given a substance index.
- Another new instance method, 'iterSubst', can be used to iterate
  over all substance emissions with a given index.
Added a formula parser module, pyAirviro.other.formula
Added array support to the formula parser in pyAirviro.other.formula
Fixed a bug in the formula parser's array handling