Renamed {cat,tag}map_mysql.json to {cat,tag}map_db.json

as the json structure stored is not specific to any database management
system.

warden_server/README

@@ -186,9 +186,9 @@ object from particular section list is used ("FileLogger" for example).
       retry_count: number of retries, defaults to 3
       event_size_limit: max size of serialized event, defaults to 5 MB
       catmap_filename: IDEA category mapping to database ids, defaults to
-                       "catmap_mysql.json" at installation directory
+                       "catmap_db.json" at installation directory
       tagmap_filename": IDEA node type mapping to database ids, defaults to
-                        "tagmap_mysql.json" at installation directory
+                        "tagmap_db.json" at installation directory
 
    WardenHandler: Main Warden RPC worker
       send_events_limit: max events sent in one bunch, defaults to 10000
@@ -285,8 +285,8 @@ warden_server.py purge [--help] [-l] [-e] [-d DAYS]
 
 warden_server.py loadmaps [--help]
 
-   Load 'categories' and 'tags' table from 'catmap_mysql.json' and
-   'tagmap_mysql.json'. Note that this is NOT needed for server at all, load
+   Load 'categories' and 'tags' table from 'catmap_db.json' and
+   'tagmap_db.json'. Note that this is NOT needed for server at all, load
    them into db at will, should you need to run your own specific SQL queries
    on data directly. Note also that previous content of both tables will be
    lost.

warden_server/warden_server.py

@@ -1305,8 +1305,8 @@ param_def = {
         "retry_pause": {"type": "natural", "default": 3},
         "retry_count": {"type": "natural", "default": 3},
         "event_size_limit": {"type": "natural", "default": 5*1024*1024},
-        "catmap_filename": {"type": "filepath", "default": path.join(path.dirname(__file__), "catmap_mysql.json")},
-        "tagmap_filename": {"type": "filepath", "default": path.join(path.dirname(__file__), "tagmap_mysql.json")}
+        "catmap_filename": {"type": "filepath", "default": path.join(path.dirname(__file__), "catmap_db.json")},
+        "tagmap_filename": {"type": "filepath", "default": path.join(path.dirname(__file__), "tagmap_db.json")}
     },
     WardenHandler: {
         "req": {"type": "obj", "default": "req"},
@@ -1663,7 +1663,7 @@ def get_args():
     subargp_loadmaps = subargp.add_parser(
         "loadmaps", add_help=False,
         description=(
-            "Load 'categories' and 'tags' table from 'catmap_mysql.json' and 'tagmap_mysql.json'."
+            "Load 'categories' and 'tags' table from 'catmap_db.json' and 'tagmap_db.json'."
             " Note that this is NOT needed for server at all, load them into db at will,"
             " should you need to run your own specific SQL queries on data directly."
             " Note also that previous content of both tables will be lost."),