Issue #12: automatic download of disambiguation templates

- Used in GenerateWikiSettings.scala (through generate-settings scala launcher)
- Moved old disambiguation template to CuratedDisambiguation.scala
- Old/manually curated templates get merged with automatically downloaded ones
Merge pull request #86 from ninniuz/12_collect_disambiguation_templates

Issue #12: automatic download of disambiguation templates
write the Feeder's last modification for backup
Merge remote-tracking branch 'origin/master'
ignore datetime errors until VOS gets fixed