Add tests to plugins Name_Spaces and TagFix_BadValue
Add translations for subtitles in various plugins
Fix erroneous code in plugin TagFix_Area
Remove unused function ToolsStripDouble() from Plugin.py
Add 'ù' to ToolsStripAccents()
Fix regexps in plugin Date
Increase coverage of tests in plugins
Update xml results for sax tests
Update translations
Don't check translation of errors subtitles when comparing xml error files
Fix strings for plugin Name_Spaces
Merge branch 'plugins'

Various changes in plugins:
  - add tests
  - add translatable subtitles