modify BackgroundFetchPlugin to run custom command
Text in AboutBox fixed
Problems with tranlation some items fixed
Russian translation updated
Correct refresh when another command than "git fetch"
Merge pull request #2052 from pmiossec/background_command

[Background fetch Plugin] Permit the user to run a custom fetch command
Russian translation improved
French translation
Merge pull request #2060 from pmiossec/french

French translation
Russian translation fixes
Merge branch 'release/2.47'

Conflicts:
	GitUI/CommandsDialogs/FormSettings.Designer.cs
	GitUI/Translation/Russian.xml