Django Filer fixes for V1

[FabriceSalvaire]

Edit icon <span class="edit-file"><span class="fa fa-pencil"></span></span> is moved to the right and hidden due to this rule

 .control-group .related-lookup {
  text-indent: 200%;
}

Fixes for change form

/* Filer right column is to small */
.inner-two-columns .inner-center-column {
    margin-right: 320px;
}
.inner-two-columns .inner-right-column {
    float: right;
    width: 300px;
}

/* Fix padding for image-info-detail */
.popup .image-info-detail {
    padding: 25px !important;
}

Still an issue on the navigator-top-nav : width of the popup ?