[evol] properly moved tmail signature handling out of postman in a library (which i should probably suggest upstream)
[evol] added postman bot (not fully cyborgified yet)
[RM] add proper git-ignored list of files
[fix] don't fail to merge bot-specific config if it is empty
[evol] Logger can handle setting a permanent prefix (until reset)
[evol] split test file into libs
Initial version