Fixed autoupdater/downloading language data

• Fixed autoupdating
• Fixed downloading new language data

Show real duty/Bugfixes/EN string updates

• Re-enabled optionally showing real duty
• Removed "Show announcement on overlay" as it did nothing for non-KR languages
• Fixed hiding/showing the overlay depending on duty status
• Fixed various EN strings (Trials, mostly)
• Added a link to the reddit post in Info

Cleaned up English GUI, added sounds

New version containing stuff from my branch, with english set as the default.