fix plane lengths, fix plane lengths in FX, assign default NULL values, fix some compile warnings, some doc fixes, fix Y range for TV or digital YUV in some FX, align buffer alloc, remove unused code

veejay-current/veejay-server/libvje/effects/water.c

@@ -37,7 +37,7 @@
 #include "common.h"
 
 typedef struct {
-	uint8_t *ripple_data[3];
+	uint8_t *ripple_data[4];
 	uint8_t *diff_img;
  	int stat;
 	signed char *vtable;