Made compatible with Android-6 and newer

• #8 Fix:
  • Reimplemented Zip-Engine through Storage-Access-Framework
  • zipping now works with android-7
  • Added two different zipfolder picker:
    • one file-folder based for android-2.1-4.4
    • and on SAF-Tree based for android-5 and newer
• Translation: Indonesian (by isaideureka)
• Translation: Chinese Traditional (by incrediblesnow)
• Translation: Nederlands (Dutch) by Omer Surer (omersurer)
• Translation: Português (Portuguese) by Miguel Dos Reis (siersod)
• Translation: Magyar (Hungarian) by csongorhunt
• Translation: Norsk (Norwegian) by hjalmarcoin
• Translation: Polish by mejser
• Translation update: Chinese Simplified (by daijia)
• Translation update: Turkish by vitruvianman
• Translation all: fixe technical problems with encodig, newline, html escaping