*__tmp_to_csv_deprecated_options__ are left behind
which fills up the /tmp on a test box:

```
/tmp# ls -l *tmp_to_csv* | nl | tail
    56  -rw------- 1 buildslave buildslave 1509 Jan 13 08:22 tmpuI3G3o__tmp_to_csv_deprecated_options__
    57  -rw------- 1 buildslave buildslave 1514 Jan 13 06:04 tmpVmc8Qa__tmp_to_csv_deprecated_options__
    58  -rw------- 1 buildslave buildslave 1513 Jan  6 00:19 tmpwHmsVO__tmp_to_csv_deprecated_options__
    59  -rw------- 1 buildslave buildslave 1511 Jan 10 19:19 tmpwmWIUl__tmp_to_csv_deprecated_options__
    60  -rw------- 1 buildslave buildslave 1513 Dec 28 19:57 tmpx480b9bk__tmp_to_csv_deprecated_options__
    61  -rw------- 1 buildslave buildslave 1523 Jan  4 23:21 tmpYpSmZM__tmp_to_csv_deprecated_options__
    62  -rw------- 1 buildslave buildslave 1520 Dec 28 21:47 tmpz55nmj_u__tmp_to_csv_deprecated_options__
    63  -rw------- 1 buildslave buildslave 1526 Jan 10 12:56 tmpzczy25oz__tmp_to_csv_deprecated_options__
    64  -rw------- 1 buildslave buildslave 1513 Dec 28 20:03 tmpZGClRm__tmp_to_csv_deprecated_options__
    65  -rw------- 1 buildslave buildslave 1511 Jan 12 19:56 tmpzktpvkfo__tmp_to_csv_deprecated_options__
```

which seems to come from one of the test_frame tests which is not among failing tests (http://nipy.bic.berkeley.edu/builders/pandas-py2.x-sid-sparc/builds/1141/steps/shell_5/logs/stdio) so should be cleaned up:
