read_table with malformed lines
On the smaller file, a useful error message is raised (bad line number could improve this)

``` python
[2]: cv = pandas.read_table('./bad_mojo2.csv', delimiter="\t")
<snip>                                                                                 
Error: newline inside string
```

On the bigger file, it "works" but an error should be raised here too. Can run this code to reproduce

http://www.pastie.org/4032080
