adds anti-duplication features
adds anti-duplication features
Added trade_id
Added trade_id to user_feedback and trade_lines
Changed inventory_owns condition from string to integer
templates for web pages
add templates
change path name
CreateUser can add location, but only works for first choice

User Description doesn't work too.
Added email verification message, need to add parameters for real verification
added template integration for home page and search results
Added verification link and can verify users through link, need to complicate parameter so that no one can randomly guess the parameter to verify account
Fixed login bug after authentication
Fixed edit button
Fixed edit button & Email
resolve merge
resolve merge
fix merge
fix merge issue
merge feature and template