[slf4j-dev] [qos-ch/slf4j] 502c52: prepare release 1.7.31

[Ceki Gulcu]

  Branch: refs/heads/1.7-maintenance
  Home:   https://github.com/qos-ch/slf4j
  Commit: 502c5286e9a98ec97beb16418f782867084eff20
      https://github.com/qos-ch/slf4j/commit/502c5286e9a98ec97beb16418f782867084eff20
  Author: Ceki Gulcu <ceki at qos.ch>
  Date:   2021-06-17 (Thu, 17 Jun 2021)

  Changed paths:
    M integration/pom.xml
    M jcl-over-slf4j/pom.xml
    M jul-to-slf4j/pom.xml
    M log4j-over-slf4j/pom.xml
    M osgi-over-slf4j/pom.xml
    M pom.xml
    M slf4j-android/pom.xml
    M slf4j-api/pom.xml
    M slf4j-ext/pom.xml
    M slf4j-jcl/pom.xml
    M slf4j-jdk14/pom.xml
    M slf4j-log4j12/pom.xml
    M slf4j-migrator/pom.xml
    M slf4j-nop/pom.xml
    M slf4j-simple/pom.xml
    M slf4j-site/pom.xml

  Log Message:
  -----------
  prepare release 1.7.31