Integrated libl4thread with libl4. Added device number to device caps.

A 16-bit device number or id further distinguishes a device on the
system in addition to the device type. This is meant to be used for
the very first identification of the device for further probing. Any
further info is available by userspace mapping and probing.

conts/libl4/include/l4lib/stack.h

@@ -0,0 +1,19 @@
+/*
+ * Stack space helper routines.
+ *
+ * Copyright (C) 2009 B Labs Ltd.
+ */
+#ifndef __LIB_STACK_H__
+#define __LIB_STACK_H__
+
+/* Checks if l4_set_stack_params is called. */
+#define IS_STACK_SETUP()	(lib_stack_size)
+
+int stack_pool_init(unsigned long stack_start,
+			unsigned long stack_end,
+			unsigned long stack_size);
+
+void *get_stack_space(void);
+int delete_stack_space(void *stack_address);
+
+#endif /* __LIB_STACK_H__ */