T-Rex 0.21.6

• (Windows) Add optional min/max fan speed constraints in auto-fan mode (see --fan for more details)
• (API) Add timestamp of the last submitted share (last_submit_ts)

Bug fixes:

• (autolykos2) Improve compatibility with mining pools
• Command line parameter --worker does not take precedence over the one specified in the config file
• (API) Pausing the miner through HTTP POST is not working
• --fork-at functionality is broken
• Cosmetic UI fixes

NOTE: Telnet API will be removed from the miner in the next release as superseded by HTTP API.