Add crypto to list of application dependencies; "make clean" nukes ebin/erlydtl.app

Makefile

@@ -26,4 +26,5 @@ test:
 	
 clean:
 	rm -fv ebin/*.beam
+	rm -fv ebin/$(APP)
 	rm -fv erl_crash.dump $(PARSER).erl

src/erlydtl/erlydtl.app

@@ -16,7 +16,7 @@
              erlydtl_scanner,
              erlydtl_unittests
             ]},
-  {applications, [kernel, stdlib]},
+  {applications, [kernel, stdlib, crypto]},
   {registered, []}
  ]}.