allow HEAD method on apis
add CORS header
update api doc
change favicon
make executor fail immediately if trade failed to create
fix model balance/locked after retry
retry on trade execution error
log skipped cancel in matching engine
Update deploy.rb and replace unicorn to passenger
update api doc
Merge branch 'hotfix'
do not round on limit order
Update doc about clone peatio
Rake task for sync deposit transactions from wallet to Database.
spec for float number edge case
Merge branch 'master' of https://github.com/peatio/peatio