ConfigFile.GetConfigSections() transformed to property
Heads renamed to Refs when appropriate
Merge branch 'master' into feature/left-panel

Conflicts:
	GitCommands/Config/ConfigSection.cs
	GitCommands/Git/GitModule.cs
	GitCommands/Git/GitRef.cs
	GitCommands/Git/GitRevision.cs
	GitCommands/RevisionGraph.cs
	GitUI/CommandsDialogs/BrowseDialog/FormGoToCommit.cs
	GitUI/CommandsDialogs/FormBrowse.cs
	GitUI/CommandsDialogs/FormPull.cs
	GitUI/CommandsDialogs/FormPush.cs
	GitUI/CommandsDialogs/FormRemotes.Designer.cs
	GitUI/CommandsDialogs/FormRemotes.cs
	GitUI/CommandsDialogs/SubmodulesDialog/FormAddSubmodule.cs
	GitUI/HelperDialogs/FormRunScriptSpecify.cs
	GitUI/Script/ScriptRunner.cs
	GitUI/UserControls/RevisionGrid.cs