Switch to using C++14

.clang-format

@@ -25,7 +25,9 @@ ColumnLimit: 80
 # C/C++ Language specifics
 #
 Language: Cpp
-Standard: Cpp11 # in clang-format 11.x: c++11
+# in clang-format 9.x "Cpp11" covers formatting for C++11 and C++14
+# in clang-format 10.x: switch to "c++14"
+Standard: Cpp11
 
 # The extra indent or outdent of class access modifiers, e.g. public:
 #
@@ -97,8 +99,6 @@ AlwaysBreakTemplateDeclarations: Yes
 # shortname = "dddd"
 #             "eeee";
 #
-# TODO Test interaction with C++11 raw string literals
-#
 # AlwaysBreakBeforeMultilineStrings: true
 
 # Attach braces to surrounding context except break before braces on function
@@ -230,13 +230,6 @@ SpacesInParentheses: false
 #
 SpacesInSquareBrackets: false
 
-# Insert a space after '{' and before '}' in struct initializers
-#
-# This is native C++11 style, but it looks very weird.
-# TODO Investigate if it has any tangible benefits.
-#
-# Cpp11BracedListStyle: false
-
 # A list of macros that should be interpreted as foreach loops instead of as
 # function calls.
 #