generate paging upgrade_tests automatically
generate paging upgrade_tests automatically

Verified that the test titles are the same with the following script:

```

reset_branch="`git rev-parse --abbrev-ref HEAD`"

paging_test_collect() {
  CASSANDRA_VERSION=cassandra-3.0 nosetests --collect-only -vv 2>&1 upgrade_tests/paging_test.py
}

diff <(paging_test_collect) <(git checkout master 1>/dev/null && paging_test_collect)

git checkout "$reset_branch" 1>/dev/null
```

blerer/cassandra-dtest,spodkowinski/cassandra-dtest,riptano/cassandra-dtest,mambocab/cassandra-dtest,snazy/cassandra-dtest,aweisberg/cassandra-dtest,beobal/cassandra-dtest,pcmanus/cassandra-dtest,carlyeks/cassandra-dtest,krummas/cassandra-dtest,aweisberg/cassandra-dtest,bdeggleston/cassandra-dtest,beobal/cassandra-dtest,iamaleksey/cassandra-dtest,stef1927/cassandra-dtest,snazy/cassandra-dtest,stef1927/cassandra-dtest,riptano/cassandra-dtest,bdeggleston/cassandra-dtest,krummas/cassandra-dtest,pauloricardomg/cassandra-dtest,blerer/cassandra-dtest,mambocab/cassandra-dtest,iamaleksey/cassandra-dtest,carlyeks/cassandra-dtest,pauloricardomg/cassandra-dtest,thobbs/cassandra-dtest,thobbs/cassandra-dtest,spodkowinski/cassandra-dtest