Merge branch 'next'

This merges the next branch accumulated during the 2017.11 release
cycle back into the master branch.

A few conflicts had to be resolved:

 - In the DEVELOPERS file, because Fabrice Fontaine was added as a
   developer for libupnp in master, and for libupnp18 in
   next. Resolution is simple: add him for both.

 - linux/Config.in, because we updated the 4.13.x release used by
   default in master, while we moved to 4.14 in next. Resolution: use
   4.14.

 - package/libupnp/libupnp.hash: a hash for the license file was added
   in master, while the package was bumped into next. Resolution: keep
   the hash for the license file, and keep the hash for the newest
   version of libupnp.

 - package/linux-headers/Config.in.host: default version of the kernel
   headers for 4.13 was bumped to the latest 4.13.x in master, but was
   changed to 4.14 in next. Resolution: use 4.14.

 - package/samba4/: samba was bumped to 4.6.11 in master for security
   reasons, but was bumped to 4.7.3 in next. Resolution: keep 4.7.3.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

support/scripts/check-uniq-files

@@ -0,0 +1,40 @@
+#!/usr/bin/env python
+
+import sys
+import csv
+import argparse
+from collections import defaultdict
+
+warn = 'Warning: {} file "{}" is touched by more than one package: {}\n'
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('packages_file_list', nargs='*',
+                    help='The packages-file-list to check from')
+    parser.add_argument('-t', '--type', metavar="TYPE",
+                        help='Report as a TYPE file (TYPE is either target, staging, or host)')
+
+    args = parser.parse_args()
+
+    if not len(args.packages_file_list) == 1:
+        sys.stderr.write('No packages-file-list was provided.\n')
+        return False
+
+    if args.type is None:
+        sys.stderr.write('No type was provided\n')
+        return False
+
+    file_to_pkg = defaultdict(list)
+    with open(args.packages_file_list[0], 'r') as pkg_file_list:
+        r = csv.reader(pkg_file_list, delimiter=',')
+        for row in r:
+            pkg = row[0]
+            file = row[1]
+            file_to_pkg[file].append(pkg)
+
+    for file in file_to_pkg:
+        if len(file_to_pkg[file]) > 1:
+            sys.stderr.write(warn.format(args.type, file, file_to_pkg[file]))
+
+if __name__ == "__main__":
+    sys.exit(main())