Use hash_equals() for old md5 hashes.

Merges [30412] to the 3.7 branch.

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Form validation for password resets.

Merges [30417] to the 3.7 branch.

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Fix typo in style filter. props miqrogroove

Merges [30425] to the 3.7 branch.

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Invalidate password keys when a user's email changes.

Merges [30430] to the 3.7 branch.

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Press This: Ensure the error message is printed. props johnbillion

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Better validation of the URL used in core HTTP requests.

Merges [30443] to the 3.7 branch.

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Anchor texturize to shortcodes to improve regex efficiency.

Merges [30452] to the 3.7 branch.

props miqrogroove.
see #29557 for segfault issues.

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Validate image data.

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Prevent high resource usage when hashing large passwords. props mdawaffe, pento

Merges [30466] to the 3.7 branch.

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3.7.5 version bumps.

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