[reltool] Automatically add included applications in rel file

If a 'rel' spec in the reltool config does not contain all
applications that are listed as {applications,Applications} in a .app
file, then these applications are autmatically added when creating the
.rel file.

For 'included_applications', the behaviour was not the same. I.e. if a
'rel' spec in the reltool config did not contain all applications that
are listed as {included_applications,InclApplications} in a .app file,
then reltool would fail with reason "Undefined applications" when
creating the .rel file. This has been corrected, so both
'applications' and 'included_applications' are now automatically added
if not already in the 'rel' spec.

I.e. for an application 'z', if z.app contains
{applications,[stdlib,kernel,x]}
{included_applications,[y]}

then reltool configuration

    {rel, "myrel", "1.0", [z]}

will cause the same .rel file as

    {rel, "myrel", "1.0", [stdlib,kernel,x,y,z]}

0 files changed, 0 insertions, 0 deletions