Merge pull request #1 from take-cheeze/master

bot update
add chat logger
log chat data adding
check room registered before accessing
use correct variable in express's request: params
fix initializing brain variable name
remove title argument of send_links
add missing variable
return empty array in search_items for workaround
fix room getting in log_message function
fix nick name getting
remove message_type function
don't use instanceof
use base_url and base_path variable
implement render_items function
improve room name escaper and escape room name in log_message function
fix css
fix month value
remove ? operator
use forEach method