Switch squeezeh and squeezev descriptions.

My bad, had the videos in front of me and still stuffed it. `squeezeh` squeezes the video to *become* horizontal, not horizontally. Ditto `squeezev`.

common/common/segments.py

@@ -70,8 +70,8 @@ KNOWN_XFADE_TRANSITIONS = {
 	"wipetr": "Combines wiperight and wipeup, creating a receding rectangle to the top-right corner.",
 	"wipebl": "Combines wipeleft and wipedown, creating a receding rectangle to the bottom-left corner.",
 	"wipebr": "Combines wiperight and wipedown, creating a receding rectangle to the bottom-right corner.",
-	"squeezeh": "Squashes the old video from the left and right until it disappears, revealing the new video.",
-	"squeezev": "Squashes the old video from the top and bottom until it disappears, revealing the new video.",
+	"squeezeh": "Squashes the old video from the top and bottom until it disappears, revealing the new video.",
+	"squeezev": "Squashes the old video from the left and right until it disappears, revealing the new video.",
 	"zoomin": "The old video zooms towards the 'camera', preserving pixels, then crossfades to the new video.",
 	"hlwind": "Like wipeleft, but the edge is incredibly jagged, evoking speed lines.",
 	"hrwind": "Like wiperight, but the edge is incredibly jagged, evoking speed lines.",