Merge pull request #13 from adsabs/vss

Replace getdict() with dict.get(), which had the same functionality as
Attempt to fix the race condition
Merge branch 'master' of github.com:adsabs/adsws
Changes to logging based on Vlad's recommendations
Merge branch 'master' of github.com:adsabs/adsws
Application logfile implemented (level+filename configurable in local_config.py)