turned off first row fixing in data table, fixes severe bug
allow hiding of admin pages in menu

..by setting "hide" to true
pass url arguments to admin page controller
changelog, bumped version
Merge branch 'release/v1.8.2'
Merge branch 'release/v1.8.2' into develop
fixed medium viewport styles in chart editor
Merge branch 'hotfix/responsive-chart-editor' into develop
make the l10n domain detection work on Windows
use DIRECTORY_SEPARATOR