support to chinese search

[lisinaner]

Bug reports

Before opening an issue, please try to reproduce on the latest development version first. The bug you noticed might have already been fixed.

If the issue can be reproduced on master, then please make sure you provide the following:

• Debug logs using the -z option;
• Details of operating system, Python version used, terminal emulator and shell;
• locale output, if relevant. It's a good idea to set your locale to UFT-8. Please refer to Buku #131.

If we need more information and there is no communication from the bug reporter within 7 days from the date of request, we will close the issue. If you have relevant information, resume discussion any time.

Feature requests

Please consider contributing the feature back to Buku yourself. Feel free to discuss. We are more than happy to help.

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[lisinaner]

when use command, like "b -r 程序员",it support to Chinese.