Changing Readme to include billing accounts instead of usernames where appropriate
Fixing comma we missed
allow the uploader to vectorize only
let the vectorize_only option through upload_file
Removing test for unavailable functionality
Merge branch 'master' of github.com:LuminosoInsight/luminoso-api-client-python
Merge branch 'master' into v3-client

Conflicts:
	README.md
made CSV encoding detection more robust
don't print debugging output when reading a CSV
.strip() csv header names, because apparently people sometimes put extra spaces in them
merge v4-client into master
actually merge.
fix tests to align with new behavior of API for getting terms on empty project
fix new test - error message is already json-loaded
fix the choosing an account for users with no default account
change api.staging.lumi to api.luminoso.com, because that exists now
in lumi-upload, preload is no longer a specifiable option, because you always want to preload, unless you're just adding documents and not recalculating, in which case you specify the 'stage' flag
wait_for raises an error if the job fails
change_path returns an object of the same class as self (which could be a subclass of LuminosoClient)
update changelog for 0.4.1