v0.7.0

• If no selector is provided, pretty-print the HTML: curl ... | candle (#16)
• When pretty-printing, show self-closing tags without children on 1 line: <meta ...></meta> (#11)
• Exit quickly if the CSS selectors are malformed (previously, it was parsing the HTML before showing any CSS selector errors. Now it shows errors before doing any HTML parsing.) (9ef7d8e)
• Don't panic when output is truncated in a pipeline: curl ... | candle | head now does what you'd expect. (#13)