Version Control With Subversion Source

~18% of basic usage be translated

[fr] Chapter 6: translation in progress.

fix the error: parser error : Opening and ending tag mismatch: centry line 737 and row

Fixed the typing error: "chứng tôi" -> "chúng tôi"

finish the translation of Fundamental Concepts (without refinement)

[fr] Chapter 8: removed trailing spaces and corrected compilation error.

[fr] Chapter 8: translation in progress.

[fr] Chapter 6: translation in progress.

[fr] Chapter 6: translation in progress.

[fr] Chapter 6: removed trailing spaces.