Add locale fallback

With this patch we will get locale in this order:
- user locale config
- system locale or its fallback locale
- default locale
Only show locale selections with LC_MESSAGES
Add Traditional Chinese translation
Fix entry type matching and TTS encoding for non-ASCII string
Add more Chinese regions and update README files
Merge pull request #25 from ladios/zh

Add locale fallback and Traditional Chinese translation
Modifying wikipedia module
mering
restauration