[NEXUS-5483] Adjust helpmark img to not be covered by combobox trigger
[NEXUS-5580] Mask window on SMTP validation UI
Improve logging

Minor change that adds more information why and which
repository is illegal state for prefix file update
Merge pull request #810 from sonatype/nexus-5483-combobox-helpmark

[NEXUS-5483] Adjust helpmark img to not be covered by combobox trigger
Merge pull request #811 from sonatype/nexus-5580-ui-smtp-validation

[NEXUS-5580] Mask window on SMTP validation UI
Merge remote-tracking branch 'origin/master' into nexus-5511-improve-infex-reasoning