Merge branch 'hotfix-0.22'
Merge branch 'release-0.23'
Merge branch 'release-0.24'
Increased version number to 0.25 and documented changes.
Merge branch 'release-0.25'.
Merge branch 'master' into develop.
Increased version number to 0.25a
Fixed bug within the send_heartbeat subroutine.
Merge branch 'hotfix-0.25a' into develop.