Fix bad merge causing error when specifying test case in non-default suite for mysql-test-run.
Implement the ability to add extra flags and configure options when running BUILD/xxx scripts.
Improve unclear help text in mysql-test-run

BUILD/FINISH.sh:
  Implement the ability to add extra flags and configure options when running BUILD/xxx scripts.
BUILD/SETUP.sh:
  Implement the ability to add extra flags and configure options when running BUILD/xxx scripts.
extra/yassl/taocrypt/include/block.hpp:
  Fix some compiler warnings.
mysql-test/lib/mtr_cases.pm:
  Fix bad merge causing error when specifying test case in non-default suite for mysql-test-run.
  Also remove some non-essential differences to mysql version to simplify future merges.
mysql-test/mysql-test-run.pl:
  Improve help texts.
plugin/fulltext/plugin_example.c:
  Fix some compiler warnings.
vio/viosslfactories.c:
  Fix some compiler warnings.