Makes the custom file input "multiple-files-friendly"
Makes the custom file input "multiple-files-friendly"

Instead of only displaying the first file upload, it will show a count if multiple files have been selected.
Changes are on line 454 to 457
idleog/cakephp3-bootstrap3-helpers,ypnos-web/cakephp3-bootstrap-helpers,lcp0578/cakephp3-bootstrap-helpers,jmenges/cakephp3-bootstrap-helpers,Holt59/cakephp3-bootstrap3-helpers,Wouter0100/cakephp3-bootstrap-helpers,Holt59/cakephp3-bootstrap-helpers,raul338/cakephp3-bootstrap3-helpers,leoruhland/cakephp3-bootstrap3-helpers,Casmo/cakephp3-bootstrap-helpers