* Dump drogon to v1.8.2 and trantor to v1.5.8
* Fix drogon patches checksum
* Dump c-ares to 1.18.1
* Fix trantor
* fix c-ares
* fix c-ares again
My apologies for my previous sloppiness: I pasted it straight from another branch (in my fork), but didn't get it right...
* fix c-ares again again
* fix trantor checksum
* add mysql as an optional dep, disable it if not used
* separate deps into config options
* don't add any logic for c-ares or openssl, invalid cmake options are just ignored anyway and don't impede installation
TES286
Hoildkv
Ashley
ruki
xq114