Additional load paths needs to be strings for 1.9
Avoid Range#overlaps? and Range#include? with Times

They end up calling Time.succ, which doesn't work on 1.9
Improve loading of CSV/FasterCSV across 1.8 and 1.9
Update to a patched version of vpim for 1.9
Use a Proc, not a lambda, for stashing comma attributes
Set the default internal and external encodings to UTF-8 on 1.9
Switch to using the mysql2 gem for MySQL
Use Array#join instead of Array#to_s for 1.9 compatibility
Don't undefine object_id on DeferProxy