Adapt wipe to MLT 7 changes, might require code to make previous projects compatible.

Related to #1116

data/transitions/wipe.xml

@@ -12,7 +12,7 @@
         <parameter type="bool" name="luma_invert" max="1" min="0" default="0">
                 <name>Invert</name>
         </parameter>
-        <parameter type="switch" name="geometry" max="0%/0%:100%x100%:100;-1=0%/0%:100%x100%:0" min="0%/0%:100%x100%:0;-1=0%/0%:100%x100%:100" default="0%/0%:100%x100%:0;-1=0%/0%:100%x100%:100">
+        <parameter type="switch" name="geometry" max="0=0% 0% 100% 100% 1;-1=0% 0% 100% 100% 0" min="0=0% 0% 100% 100% 0;-1=0% 0% 100% 100% 1" default="0=0% 0% 100% 100% 0;-1=0% 0% 100% 100% 1">
                 <name>Revert</name>
         </parameter>
         <parameter type="fixed" name="aligned" value="0" />