Move some logic out of RevisionGrid to new class RevisionGridClasses/CopyToClipboardUtil.cs
Copy to clipboard menu: do not cascade branche names
rename class
Copy to clipboard menu: do not cascade tag names
Merge remote-tracking branch 'gitextensions/master' into change/copy_to_clipboard_menu
Merge pull request #1973 from feinstaub/change/copy_to_clipboard_menu

RevisionGrid -> "copy to clipboard" menu: do not cascade branch and tag names
fixing postBuildEvent case sensitive error when compiling with xbuild

Avoid calling user32.dll on EditNetSpellChecker, formcommit opens

removing MonoCS compiler directives, checking runtime for mono

adding GitCommands.Utils

we should use EnvUtils.IsMonoRuntime
disabling the delegates for the spelling