Merge pull request #4209 from esl/refactor/roster #1072

Job	Run time
edoc on OTP 25.2	2m 19s
dialyzer on OTP 25.2	4m 37s
internal_mnesia on OTP 26.1.2	19m 31s
dynamic domains pgsql_mnesia on OTP 26.1.2	18m 25s
pgsql_mnesia on OTP 26.1.2	21m 48s
dynamic domains mysql_redis on OTP 26.1.2	18m 2s
dynamic domains odbc_mssql_mnesia on OTP 26.1.2	20m 36s
centos_7 package	5m 36s
small_tests on OTP 25.3.2.6	7m 45s
dynamic domains pgsql_mnesia on OTP 25.3.2.6	18m 26s
mysql_redis on OTP 26.1.2	21m 29s
small_tests on OTP 26.1.2	8m 0s
ubuntu_xenial package	5m 13s
odbc_mssql_mnesia on OTP 26.1.2	23m 42s
ldap_mnesia on OTP 26.1.2	13s
elasticsearch_and_cassandra_mnesia on OTP 26.1.2	6m 36s
xref on OTP 25.2	2m 7s
ldap_mnesia on OTP 25.3.2.6	18m 48s
pgsql_mnesia on OTP 25.3.2.6	21m 14s
coveralls_webhook	0s
	4h 4m 27s

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