NetBSD re-synchronization of the source tree

This brings our tree to NetBSD 7.0, as found on -current on the
10-10-2015.

This updates:
 - LLVM to 3.6.1
 - GCC to GCC 5.1
 - Replace minix/commands/zdump with usr.bin/zdump
 - external/bsd/libelf has moved to /external/bsd/elftoolchain/
 - Import ctwm
 - Drop sprintf from libminc

Change-Id: I149836ac18e9326be9353958bab9b266efb056f0

external/bsd/kyua-cli/dist/cli/main.cpp

@@ -51,7 +51,6 @@ extern "C" {
 #include "cli/cmd_list.hpp"
 #include "cli/cmd_report.hpp"
 #include "cli/cmd_report_html.hpp"
-#include "cli/cmd_report_tap.hpp"
 #include "cli/cmd_test.hpp"
 #include "cli/common.ipp"
 #include "cli/config.hpp"
@@ -170,7 +169,6 @@ safe_main(cmdline::ui* ui, int argc, const char* const argv[],
 
     commands.insert(new cli::cmd_report(), "Reporting");
     commands.insert(new cli::cmd_report_html(), "Reporting");
-    commands.insert(new cli::cmd_report_tap(), "Reporting");
 
     if (mock_command.get() != NULL)
         commands.insert(mock_command);