Bug 1350291, landing final NSPR 4.15 RTM tag, no code change, just version number, r=me

UPGRADE_NSPR_RELEASE, DONTBUILD

--HG--
extra : amend_source : 05aeb0bcaaaaab1d793158910126a4d6063b8e22

nsprpub/TAG-INFO

@@ -1 +1 @@
-NSPR_4_15_BETA2
+NSPR_4_15_RTM

nsprpub/config/prdepend.h

@@ -10,4 +10,3 @@
  */
 
 #error "Do not include this header file."
-

nsprpub/pr/include/prinit.h

@@ -31,11 +31,11 @@ PR_BEGIN_EXTERN_C
 ** The format of the version string is
 **     "<major version>.<minor version>[.<patch level>] [<Beta>]"
 */
-#define PR_VERSION  "4.15 Beta"
+#define PR_VERSION  "4.15"
 #define PR_VMAJOR   4
 #define PR_VMINOR   15
 #define PR_VPATCH   0
-#define PR_BETA     PR_TRUE
+#define PR_BETA     PR_FALSE
 
 /*
 ** PRVersionCheck