use ssl-connection branch from escalus
test legacy connection as well
add mod_private_mysql backend to generic counts
generate tls test cases
store test preset in suite confige
takie into account test preset while building cfg vars
clean beam files from tests while doing `make clean`
adjust ct_mongoose_hook to run on R15
skip connect_SUITE for external auth
make cover table sortable
use escalus 29fcd0baed990d5e6b1fa2c3fd166f82d19dfe67
Merge pull request #103 from esl/dead-code-removal

Dead code removal