Python : Improve editing of tags;
Python : Fix error upon no results on Atom;
SQLite : Add triggers to count instances of entries;
SQLite : Add triggers to delete entries
SQLite : Add triggers to delete tags;
XSLT : Remove control characters in favour of nbsp entity;
XSLT : Improve links and design;
XHTML : Add a new document about folksonomy;
XHTML : Add a new template for URL;
XHTML : Add indicators.
HTML : Add an XML template for The Atom Syndication Format;
Python : Add support for The Atom Syndication Format;
README : Add screenshots;
XSLT : Add an XSL Transformations stylesheet.
Python : Add an error message to page URL;
Python : Limit number of tags of each entry to 5 tags;
README : Update Subtitle, Future features and Instructions.
XHTML : Add titles to templates;
XHTML : Add control characters U+200A HAIR SPACE and U+200B ZERO WIDTH SPACE (temporary);
XHTML : Various of minor corrections and fixes.
