ticket:11250: Markus' review comments

git-svn-id: http://source.icu-project.org/repos/icu/icu@36488 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10992: update pool bundles

git-svn-id: http://source.icu-project.org/repos/icu/icu@36489 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10992: only warning with -w when a collator cannot be built from rules (eg with import)

git-svn-id: http://source.icu-project.org/repos/icu/icu@36490 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10981: round of uconfig.h fixes


git-svn-id: http://source.icu-project.org/repos/icu/icu@36491 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10981: disable this test under more situations


git-svn-id: http://source.icu-project.org/repos/icu/icu@36492 251d0590-4201-4cf1-90de-194747b24ca1