Fixed: nervgh#512

Updated: "in derived classes, super() should be called before" (nervg…

…h#492)

new version

Fixes for old IE

Updated: es5 to es6 (modules & classes)

(cherry picked from commit 84a7946)

Fixes nervgh#471, nervgh#436, nervgh#391,nervgh#286, nervgh#244

(cherry picked from commit 73903b1)

Conflicts:
	dist/angular-file-upload.min.js
	package.json

Updated: gulp & webpack instead Grunt, Coffee, etc.

(cherry picked from commit 6c7ff41)

Fixes nervgh#353, nervgh#392, nervgh#443, nervgh#462, nervgh#387, ner…

…vgh#432

Added: "enable ie9 to transport complex form data" (nervgh#259)

Fixed: "Angular 1.3.0 RC5 breaks angular-file-upload (RC4 worked fine)" 

nervgh#272, nervgh#263, nervgh#277, nervgh#276