First commit.
Added docstring for fetch_all.
Checked the existence of 'not_analyzed.txt before removal.
Better exception handling.
Add logging on console if no file logger has been specified.
Better logging. Removed downloaded parts checking.
Changed logging level for 404, from warning to error.
Changed logging level for 404 back to warning.
Better exception handling.
Merge branch 'master' of github.com:ziyuang/chinese-etymology