Revision history for Perl extension Chemistry::File::SMARTS.

0.21  Aug 13 2004
    - Fixed parsing bug where Br was interpreted as "boron in a ring", among
      other two-letter symbols.

0.20  Aug 6 2004
    - Added support for recursive SMARTS, R and r atom primitives, and @ bond
      primitive.

0.11  Jun 31 2004
    - Fixed tokenizing bug for consecutive branches.

0.10  Jun 17 2004
    - First release
