Merge pull request hummingbot#3914 from CoinAlpha/staging

release / version 0.42.0 staging -> master

Merge pull request hummingbot#3733 from CoinAlpha/staging

release / sync 0.41.0 staging -> master

Merge pull request hummingbot#3591 from CoinAlpha/staging

release / sync 0.40.0 staging -> master

Merge pull request hummingbot#3509 from CoinAlpha/hotfix/kucoin_get_o…

…rder_book_snapshot_error

hotfix / KuCoin failing to fetch order book snapshots -> master

Merge pull request hummingbot#3401 from CoinAlpha/staging

release / sync 0.39.0 staging -> master (PR 2 of 3)

Merge pull request hummingbot#3213 from CoinAlpha/hotfix/huobi-auth-e…

…rror

hotfix/ Huobi unable to track orders into master

Merge pull request hummingbot#3176 from CoinAlpha/development

release / sync dev 0.38.0 -> master (PR 2 of 3)

Merge pull request hummingbot#3059 from CoinAlpha/fix/trading_pair_ti…

…meout

[0.37.1] hotfix / added check to replace timeout errors with empty lists

Merge pull request hummingbot#3052 from CoinAlpha/development

release / sync dev 0.37.0 -> master (PR 2 of 3)

Merge pull request hummingbot#2936 from CoinAlpha/development

release / sync dev 0.36.0 -> master (PR 3 of 3)