Allow users to set the locale, strips headers, replace empty string with `empty string` before type guessing to make sure that it is guessed as string, strip string cells, refactor header check
PEP 8
Test locale settings and refactor tests
Test unicode and fix problems with writing unicode
Fix locale on travis and use mirror also for setup.py
Merge pull request #12 from uwescience/fix-null-upload

Fixes for upload