Fix paver python prereq paths
i18n: Make values that has 'display_name' be displayed localized in editor

Dictionary values like Boolean, or some other value types which has 'display_name' can now be displayed with the localized version.
Fixed change log table format & pdf errors
Merge pull request #3875 from louyihua/translation-fix

i18n: Make values that has 'display_name' be displayed localized in editor
Merge pull request #3903 from edx/ahodges/documentation/data_chg_log

Fixed change log table format & pdf errors
Merge pull request #3487 from edx/ammar/fix-paver-python-prereq-paths

Fix paver python prereq paths
i18n of Image Response [BLD-723]