Tweak layout.
file job.c is no more

Adapted makefile to correctly build.

Signed-off-by: Marco van Wieringen <marco.van.wieringen@bareos.com>
Switch to gcc 4.8

Unfortunately, with gcc 4.8, libc now is called
- libgcc_s_sjlj-1.dll on 32Bit Windows
- libgcc_s_seh-1.dll  on 64Bit Windows

This patch adapts to that fact.

Signed-off-by: Marco van Wieringen <marco.van.wieringen@bareos.com>