manager: update minor version

Based on bridge video AMI event changes, bump the minor version of AMI.

Change-Id: Idf84507354170400813cda780906c94c9f1b60b4

include/asterisk/manager.h

@@ -54,7 +54,7 @@
 - \ref manager.c Main manager code file
  */
 
-#define AMI_VERSION                     "3.0.0"
+#define AMI_VERSION                     "3.1.0"
 #define DEFAULT_MANAGER_PORT 5038	/* Default port for Asterisk management via TCP */
 #define DEFAULT_MANAGER_TLS_PORT 5039	/* Default port for Asterisk management via TCP */