Issue notice if pretty permalinks are not enabled, and disable the plugin from minifying so site doesn't break due to 404's #16
* Proper markup/translation mix
* One liner for permalinks check, as the global variable shall not be used again in the function
* Honor previous condition while checking reasons to disable minification
* Add link to permalinks page
Improve translatability of deactivated permalinks warning
Prevent filters from overriding no-permalinks disabled state
Merge branch '16b' into develop

Resolves #25 and #16