Fixed some typos, courtesy of codespell

src/libfast/fast_dispatcher.c

@@ -30,7 +30,7 @@
 #include <collections/linked_list.h>
 #include <collections/hashtable.h>
 
-/** Intervall to check for expired sessions, in seconds */
+/** Interval to check for expired sessions, in seconds */
 #define CLEANUP_INTERVAL 30
 
 typedef struct private_fast_dispatcher_t private_fast_dispatcher_t;

src/libfast/fast_dispatcher.h

@@ -83,7 +83,7 @@ struct fast_dispatcher_t {
 	 * The first controller added serves as default controller. Client's
 	 * get redirected to it if no other controller matches.
 	 *
-	 * @param constructor	constructor function to the conntroller
+	 * @param constructor	constructor function to the controller
 	 * @param param			param to pass to constructor
 	 */
 	void (*add_controller)(fast_dispatcher_t *this,