Add copyright statement to files in include subdirectory

Added Cloudius copyright statement to our own code in include/.
Also added include/api/LICENSE saying that these are copied from Musl
and public domain (according to the Musl COPYRIGHT file).

include/align.hh

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef ALIGN_HH_
 #define ALIGN_HH_
 

include/alloctracker.hh

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 // alloc_tracker is used to track living allocations, and the call chain which
 // lead to each allocation. This is useful for leak detection.
 //

include/alternative.hh

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef _ALTERNATIVE_HH_
 #define _ALTERNATIVE_HH_
 

include/api/LICENSE

+Unless otherwise stated, the header files in this directory have been
+copied from the Musl project.
+
+The Musl "COPYRIGHT" file states that "[these] files are trivial, in my
+opinion not copyrightable in the first place, and hereby explicitly released
+to the Public Domain".

include/barrier.hh

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef BARRIER_HH_
 #define BARRIER_HH_
 

include/debug.hh

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef DEBUG_H
 #define DEBUG_H
 

include/dhcp.hh

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef __DHCP_HH__
 #define __DHCP_HH__
 

include/elf.hh

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef ELF_HH
 #define ELF_HH
 

include/eventlist.hh

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef EVENTLIST_H
 #define EVENTLIST_H
 

include/execinfo.h

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef INCLUDED_EXECINFO_H
 #define INCLUDED_EXECINFO_H
 

include/glibc-compat/bits/wordsize.h

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef WORDSIZE_H_
 #define WORDSIZE_H_
 

include/glibc-compat/ctype.h

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef GLIBCCOMPAT_CTYPE_H_
 #define GLIBCCOMPAT_CTYPE_H_
 

include/glibc-compat/features.h

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef GLIBCCOMPAT_FEATURES_H_
 #define GLIBCCOMPAT_FEATURES_H_
 

include/glibc-compat/locale.h

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef GLIBCCOMPAT_LOCALE_H_
 #define GLIBCCOMPAT_LOCALE_H_
 

include/glibc-compat/sys/cdefs.h

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef CDEFS_H_
 #define CDEFS_H_
 

include/glibc-compat/sys/errno.h

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #include <errno.h>

include/glibc-compat/sys/ioctl.h

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef GLIBCCOMPAT_IOCTL_H_
 #define GLIBCCOMPAT_IOCTL_H_
 

include/glibc-compat/xlocale.h

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef GLIBCCOMPAT_XLOCALE_H_
 #define GLIBCCOMPAT_XLOCALE_H_
 

include/ilog2.hh

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef OSV_ILOG2_HH
 #define OSV_ILOG2_HH
 

include/interrupt.hh

+/*
+ * Copyright (C) 2013 Cloudius Systems, Ltd.
+ *
+ * This work is open source software, licensed under the terms of the
+ * BSD license as described in the LICENSE file in the top-level directory.
+ */
+
 #ifndef INTERRUPT_HH_
 #define INTERRUPT_HH_