NEWS and version update

NEWS

+Version 2.0.7 (2019-10-11)
+  o BGP: Accumulated IGP metric (RFC 7311)
+  o Important filter reconfiguration bugfix
+  o Several other bugfixes
+
 Version 2.0.6 (2019-09-10)
   o RAdv: Solicited unicast RAs
   o BGP: Optional Adj-RIB-Out

misc/bird.spec

 Summary: BIRD Internet Routing Daemon
 Name: bird
-Version: 2.0.6
+Version: 2.0.7
 Release: 1
 Copyright: GPL
 Group: Networking/Daemons

sysdep/config.h

@@ -13,7 +13,7 @@
 #ifdef GIT_LABEL
 #define BIRD_VERSION XSTR1(GIT_LABEL)
 #else
-#define BIRD_VERSION "2.0.6"
+#define BIRD_VERSION "2.0.7"
 #endif
 
 /* Include parameters determined by configure script */