v2v.tests-shared: Fix wrong order of included files.

Signed-off-by: Yu Mingfei <yumingfei@cn.fujitsu.com>
v2v.tests: Rebuild cfg/tests.cfg for script 'run'.

Signed-off-by: Yu Mingfei <yumingfei@cn.fujitsu.com>
v2v.testcases: Enhancements of convert_remote_vm.

* Target_dev should be same as lvm pool's name.
* Replace test.tmpdir to data_dir to avoid too long
  path error.
* Add logic volume checking for creating lvm pool.
* Print more debug info for test.

Signed-off-by: Yu Mingfei <yumingfei@cn.fujitsu.com>
v2v.testcases: Check 'block' parameter for pool.

Signed-off-by: Yu Mingfei <yumingfei@cn.fujitsu.com>