Update to upstream release 2.2.4, fix remote attack CVE-2016-5108

Detailed changelog (BSD relevant excerpts):

Decoder:

• Fix crash in G.711 wav files
• Fix mp3 crash in libmad
• Fix out-of-bound write in adpcm QT IMA codec (CVE-2016-5108)

Qt:

• Fix resizing issues

Translations:

• Update of Bulgarian, Catalan, German, French, Italian, Marathi, Norwegian Bokmål, Norwegian Nynorsk, Portuguese, Slovak, Spanish (Mexico), Swedish, Simplified Chinese, and Traditional Chinese translations

MFH: 2016Q2
Security: CVE-2016-5108