Clarified discussion in "The Unicode Basis of CFString Objects."

Removed statement that character set is restricted to ASCII.

Added information to "Handling External Representations of Strings" about string encodings that do not include a BOM.

Added section to "Comparing, Sorting, and Searching String Objects" to illustrate how to sort strings like Finder.

Included the "String Format Specifiers" article.

Changed title from "Strings." Updated "About Strings" to include a reference to CFAttributedString.

Corrected description of character-by-character literal comparisons in "Comparing and Searching String Objects."

Corrected use of CFRangeMake in Accessing the Contents of String Objects.

Corrected the description of the CFStringCapitalize function.

Converted existing Core Foundation documentation into topic format. Added revision history.