debug/gdb: install tic in the buildtools directory

'tic' is a build tool, its place is in the buildtools
directory, not in the toolchain's bin directory.

debug/gdb: be less verbose during the ncurses build

scripts: don't set LD_PRELOAD with static companion libraries

When cpmpanion libraries are built statically, it is useless to set
LD_PRELOAD. Worse, it might break the build in some corner cases.

docs: update the section about the wrapper

The wrapper is no longer needed when building
non-shared companion libraries. Document that.

arch/sh: fix type in variant handling

scripts/savesample: be silent when checking for .config file

1.6: update version to 1.6.2+hg

Tagging release 1.6.2

1.6: update version to 1.6.2

cc/gcc: fix cc symlink when executables have an extension

When building a cross-compiler for a host which depends
on file extensions the symlink for cc was not installed correctly

Signed-off-by: Bart vdr. Meulen <bartvdrmeulen@gmail.com>
[Yann E. MORIN: style fixes, enhancements, code prettying]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 214c64ba8b21db15f610eca886fb194a6675e40c)