ticket:10306: Fix ICU data loading so that data that is padded with 8 bytes is still loaded correctly.

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@34043 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10304: Fix MessageFormat::setArgStartFormat() so that it returns immediately after freeing adopted pointer on error.

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@34044 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10258: Free minus sign and plus sign set in a clean up function.

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@34045 251d0590-4201-4cf1-90de-194747b24ca1