added -c and --worker-threads-count to luna --help

scripts/luna

@@ -47,6 +47,7 @@ OPTIONS
 	-b
 		Enable dynamic balance.
 		
+
 	-O0
 	-O
 	    Specify optimization level. -O0 optimizes compilation time at
@@ -66,9 +67,18 @@ OPTIONS
 	    Do not run program after compilation. Also sets no-cleanup 
 	    flag. Output is a command for program execution.
 
+	-c
+	    Only compile the program, deleting all intermediate files.
+	    The result is stored as ./libucodes.so by default (unlike
+	    the --compile-only flag, which stores the result into
+	    the build directory.
+
 	-D key
 	-D key=val
 	    Add preprocessor variable (#define...)
+
+	--worker-threads-count=<count>
+	    Set number of worker threads.
 	
 ENVIRONMENT
 	Environment variables affect LuNA settings, but the OPTIONs take