Add creel & length limits for catfish

Per #29.

fishing/blue_catfish.json

@@ -29,9 +29,8 @@
 		"description": "20 per day, only 1 blue catfish per day longer than 32 inches",
 		"exceptions": {
 			"1": {
-				"place": "Virginia",
-				"description": "all rivers below the fall line",
-				"limits": "no daily limit, except only 1 blue catfish per day longer than 32 inches"
+				"place": "all rivers below the fall line",
+				"description": "no daily limit, except only 1 blue catfish per day longer than 32 inches"
 			}
 		}
 	},

fishing/channel_catfish.json

@@ -26,7 +26,15 @@
 		],
 		"identification": "Catfish family. Deeply forked tail. Upper jaw is longer than, and overlaps the lower. When small, its smooth-skinned body is usually spotted; however, these spots disappear in older fish (can be confused with blue catfish, see identification of blue catfish). Has a small dorsal fin with stiff spine standing high on its back. Varies in color, although generally dark brownish to slate-gray on top, fading to light brownish-gray on the sides. Has 25 to 29 rays in its anal fin."
 	},
-	"limits": {},
+	"limits": {
+		"description": "20 per day. No length limits.",
+		"exceptions": {
+			"1": {
+				"place": "All rivers below the fall line",
+				"description": "No daily limit"
+			}
+		}
+	},
 	"best_fishing": {
 		"description": "Lakes: Buggs Island, Gaston, South Holston, Claytor, Anna, Chesdin, Flannagan, and most small public lakes. Rivers: Rappahannock, Appomattox, Chickahominy, Mattaponi, Pamunkey, New, Shenandoah and North Landing.",
 		"lakes": {

fishing/flathead_catfish.json

@@ -25,7 +25,15 @@
 		],
 		"identification": "Catfish family. Broadly flattened head with a lower jaw that projects beyond the upper jaw. Tail only slightly notched and adipose fin is relatively large. Body is yellowish or cream-colored, with black, dark brown or olive-brown mottling on back and sides, fading to dirty white or yellow. Younger fish have darker, bolder markings and the upper tip of the tails have white, triangular patches."
 	},
-	"limits": {},
+	"limits": {
+		"description": "20 per day. No length limits.",
+		"exceptions": {
+			"1": {
+				"place": "All rivers below the fall line",
+				"description": "No daily limit"
+			}
+		}
+	},
 	"best_fishing": {
 		"description": "Rivers: James, New, Staunton/Roanoke and Occoquan Creek. Lakes: Occoquan, Claytor and, Flannagan, Smith and Buggs Island.",
 		"lakes": {

fishing/white_catfish.json

@@ -23,7 +23,15 @@
 		],
 		"identification": "Catfish family. One of the bullhead catfishes. Average 8 to 18 inches, rarely 20. Has a moderately forked tail, a stocky body with its upper jaw extending slightly beyond lower. Color is basically bluegray above, fading to gray on its sides with a white underside. Occasionally mottled light gray on its sides."
 	},
-	"limits": {},
+	"limits": {
+		"description": "20 per day. No length limits.",
+		"exceptions": {
+			"1": {
+				"place": "All rivers below the fall line",
+				"description": "No daily limit"
+			}
+		}
+	},
 	"best_fishing": {
 		"description": "Tidal rivers such as the Potomac, Rappahannock, James, and York and numerous lakes in southeast and central Virginia.",
 		"lakes": {},