Add support for string escaping

This is needed for spaces at the end of variables

data/config

@@ -8,8 +8,9 @@
 # - After the value
 #
 # String variables can be escaped ([Notation in config] -> "Result"):
-# - foo\\bar -> "foo<backspace>bar"
+# - foo\\bar -> "foo<backlash>bar"
 # - foo\nbar -> "foo<newline>bar"
+# - foo\sbar -> "foo bar"
 
 # The following three options control the ordering of the widgets.
 # Reordering can cause slight margin inconsistencies,

src/Config.cpp

@@ -23,6 +23,7 @@ void ApplyProperty<std::string>(std::string& propertyToSet, const std::string_vi
     Utils::Replace(propertyToSet, "\\n", "\n");
     Utils::Replace(propertyToSet, "\\\\", "\\");
     Utils::Replace(propertyToSet, "\\t", "\t");
+    Utils::Replace(propertyToSet, "\\s", " ");
 }
 
 template<>