same behaviour for Page->getAttribute like we have with UserInfo->getAttribute
some documentation
Refactor of Job::exportList()

Refactor of `Job::exportList()`
Invalid category instead of Unable category
Merge pull request #1257 from mkly/fix_job_export

Refactor of Job::exportList()
Merge pull request #1256 from mlocati/invalid_vs_unable_message

Invalid category instead of Unable category
Merge pull request #1251 from Remo/display-mode-for-page-attribute

same behaviour for Page->getAttribute like UserInfo->getAttribute