Cotonti Siena 0.9.3

#1. What's new in Siena 0.9.3

• Support for multiple parsers and editors on site and parser/editor selection in Administration => Configuration. Read more.
• Fixed important bugs in mail sending function. User activation is back to normal.
• Extension management tool now lets you remove broken plugins and install extensions with no actual parts (just a setup file and nothing else).
• CoTemplate debug output now contains full block paths to avoid confusion.
• Several minor bugs fixed.