Fix case-insensitivity-related bugs#78

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BurntSushi merged 3 commits intorust-lang:masterfrom

SimonSapin:case-folding

Apr 19, 2015

Commits on Apr 19, 2015

Fix #75: map char ranges for case-insensitivity at parse time.
SimonSapin
committed
Fix #76 case-insensitive matching of character ranges
SimonSapin
committed
Use Unicode simple case folding for case-insensitivity. Fix #55.
SimonSapin
committed