[themes] Update default-separators

see #623

themes/icons/awesome-fonts.json

@@ -2,7 +2,9 @@
   "defaults": {
     "separator": "",
     "padding": " ",
-    "unknown": { "prefix": "" }
+    "unknown": { "prefix": "" },
+    "separator-block-width": 0,
+    "default-separators": false
   },
   "date": { "prefix": "" },
   "time": { "prefix": "" },

themes/powerline.json

@@ -10,7 +10,7 @@
 			"fg": "#d75f00",
 			"bg": "#ffd700"
 		},
-		"default_separators": false
+		"default-separators": false
 	},
 	"cycle": [
 		{

themes/solarized.json

@@ -10,7 +10,7 @@
 			"fg": "#002b36",
 			"bg": "#b58900"
 		},
-		"default_separators": false,
+		"default-separators": false,
 		"separator": ""
 	},
 	"cycle": [

themes/wal-powerline.json

@@ -11,7 +11,7 @@
 			"fg": "cursor",
 			"bg": "color6"
 		},
-		"default_separators": false
+		"default-separators": false
 	},
 	"cycle": [
 		{