Force plugin rebuild

There are a bunch of crash-triggering ABI break, and a bunch of plugins
have removed (= old ABI plugins left in your tree) - bad combination.

include/vlc_plugin.h

@@ -39,8 +39,8 @@
 /**
  * Current plugin ABI version
  */
-# define MODULE_SYMBOL 1_0_0b
-# define MODULE_SUFFIX "__1_0_0b"
+# define MODULE_SYMBOL 1_0_0c
+# define MODULE_SUFFIX "__1_0_0c"
 
 /*****************************************************************************
  * Add a few defines. You do not want to read this section. Really.