Relax certificate check for Travis build
*8841* /issue/current/showToc redirects to /issue/view/xx/showToc
*8790* Fix for DOAJ plugin publication dates
*8852* Fixed default frequency time definition
*8864* Fixed issue ToC display when article cover images are shown.
*8853* Add explicit string cast to avoid problematic DB cast
*8824* Fixed more jslint warnings
Ignore CSS in cache
*8854* Add config variable to declare X_FORWARDED_FOR header as trusted or untrusted
*8863* Fix reviewer comment editing/deletion
*8859* Improve article copyright/license affixing
*6837* Implementing administrator password validation on instalation
Move permissions setup from ArticleDAO to controller and workflow; cleanup some style issues
*8818* Redirect to current issue if issue URI specifies unpublished issue
*8818* Fix static call in IssueHandler::_setupIssueTemplate()
Clarify comments for new Article features
*8622* Add custom block ids; fix escape of custom block name in custom block manager.
Check for copyright year in sectionEditorSubmission after publishing status is set; key quickSubmit publication status on user input, key copyright year check on publication status
*8832* Parse cron tab after install/upgrade and on plugin management
*8832* Adapted usage stats plugin to new acron plugin behavior