Changed contribute to add, examples
search bar on every page
Import/export bug fixes

Import Comments and Tracking, properly format timestamps, unique
constraint on (Tracking.user_id, Tracking.term_id), rollback when
breaking unique constraint.
Added recent/score listings

Fixed search form on all pages.
unicode support
A few features

Convert timestamps to localtime, display reputation in /settings,
secondary sort for /browse/score = vote score.
second draft of scoring.pdf
Cleaned up voting logic
printTermAsHTML() fix