MultiIndex repr does not insert "..." when summarizing
Note the jump from 49 to 150.

``` python
In [55]: pd.MultiIndex.from_tuples(zip(*[range(200),range(200)]))
Out[55]: 
MultiIndex
[0   0 , 1   1 , 2   2 , 3   3 , 4   4 , 5   5 , 6   6 , 7   7 , 8   8 , 9   9 , 10  10, 11  11, 12  12, 13  13, 14  14, 15  15, 16  16, 17  17, 18  18, 19  19, 20  20, 21  21, 22  22, 23  23, 24  24, 25  25, 26  26, 27  27, 28  28, 29  29, 30  30, 31  31, 32  32, 33  33, 34  34, 35  35, 36  36, 37  37, 38  38, 39  39, 40  40, 41  41, 42  42, 43  43, 44  44, 45  45, 46  46, 47  47, 48  48, 49  49, 150  150, 151  151, 152  152, 153  153, 154  154, 155  155, 156  156, 157  157, 158  158, 159  159, 160  160, 161  161, 162  162, 163  163, 164  164, 165  165, 166  166, 167  167, 168  168, 169  169, 170  170, 171  171, 172  172, 173  173, 174  174, 175  175, 176  176, 177  177, 178  178, 179  179, 180  180, 181  181, 182  182, 183  183, 184  184, 185  185, 186  186, 187  187, 188  188, 189  189, 190  190, 191  191, 192  192, 193  193, 194  194, 195  195, 196  196, 197  197, 198  198, 199  199]
```
