[i18n] Translate Dutch new format
[connector] `$_POST` and `$_REQUEST` pass through in input_filter()
[ui:cmd:netmount] add textbox `Encoding`, `Locale` into netmount form
Merge branch '2.1' into 2.1_n
Merge pull request #940 from barryvdh/patch-3

[i18n] Translate Dutch new format
Merge branch '2.x' into 2.1
Merge branch '2.1' into 2.1_n