Bug 1228641. Remove initializer_list from stl-headers

Including new before initializer_list seems to cause problems like:

c:\tools\vs2013\vc\include\xutility(1278) : error C2065: 'initializer_list' : undeclared identifier
c:\tools\vs2013\vc\include\xutility(1278) : error C2065: '_Ilist' : undeclared identifier
c:\tools\vs2013\vc\include\xutility(1281) : error C2433: 'rbegin' : 'inline' not permitted on data declarations
c:\tools\vs2013\vc\include\xutility(1281) : error C2365: 'std::rbegin' : redefinition; previous definition was 'function'
c:\tools\vs2013\vc\include\xutility(1281) : error C2998: 'std::reverse_iterator<const _Elem*> std::rbegin' : cannot be a template definition
c:\tools\vs2013\vc\include\xutility(1284) : error C2065: 'initializer_list' : undeclared identifier
c:\tools\vs2013\vc\include\xutility(1284) : error C2065: '_Ilist' : undeclared identifier
c:\tools\vs2013\vc\include\xutility(1287) : error C2433: 'rend' : 'inline' not permitted on data declarations
c:\tools\vs2013\vc\include\xutility(1287) : error C2365: 'std::rend' : redefinition; previous definition was 'function'
c:\tools\vs2013\vc\include\xutility(1287) : error C2998: 'std::reverse_iterator<const _Elem*> std::rend' : cannot be a template definition

initializer_list shouldn't very be doing any allocation or throwing exceptions so we should be fine.

CLOBBER

@@ -22,4 +22,4 @@
 # changes to stick? As of bug 928195, this shouldn't be necessary! Please
 # don't change CLOBBER for WebIDL changes any more.
 
-Bug 1133073 - Use PR_DuplicateEnvironment from NSPR and remove interim mozglue wrappers.
+Bug 1228641 - Remove initializer_list from config/stl-headers

config/stl-headers

@@ -20,7 +20,6 @@ new
 algorithm
 atomic
 deque
-initializer_list
 ios
 iosfwd
 iostream