Remove icu

It's now provided by Poky Dylan.
Also depend on libicule instead of libicule50.
Remove eglibc bbappend

Poky Dylan now includes eglibc 2.17.
Remove make bbappend

It's now part of Poky Dylan.
Remove cracklib bbappend

It's now part of Poky Dylan.
Rename linux-maui-ostree to linux-maui

It's simpler.
Remove nspr

It's now part of Poky Dylan.
Update openssh bbappend to 6.1p1

Follow Poky Dylan version.
Fix QA issue raised by bitbake

RDEPENDS and ALLOW_EMPTY were not package specific.