Turn method importing.ImportDialog._unicodeWarning() into a function.
Merge pull request #27 from ospalh/fix-warning-method-function

Turn method importing.ImportDialog._unicodeWarning() into a function.
make sure y axis starts at 0

https://anki.tenderapp.com/discussions/ankidesktop/793-strange-scaling-in-statistics-bar-bug
preliminary preview support
remove unused onRevlog()
Merge remote-tracking branch 'dae/master' into flake

Conflicts:
	aqt/browser.py
	aqt/importing.py
A bit of re-cleaning.
Clean the new bits of the card browser.
minor clean-up