v2.5.1

This release includes the following improvements:

1. Instances conceptual explanation (#324, #327, #331)
2. eProsima DDS Record and Replay (#326, #328)
3. Release lifecycle (#321)
4. Add Python API reference and example (#318, #344, #320)

This release includes the following bugfixes:

1. Support for IDL maps clarification (#316)
2. Several Doxygen fixes (#317, #345, #329)
3. Relocate specifying locator addresses using names (#319)
4. Scope and caveats of dynamic network interfaces (#322)
5. Fix source installation instructions (#343, #339, #342, #332)

PRs in merge order:
#316, #317, #319, #324, #327, #326, #321, #322, #318, #328, #343, #339, #344, #342, #320, #332, #345, #331, #329