ENH: Use int shape

[larsoner]

This suppresses numpy warnings.

[pv]

Maybe better use newshape = [1]*x.ndim

In [2]: %timeit np.ones(5, dtype=int)
1000000 loops, best of 3: 1.75 us per loop
In [3]: %timeit [1]*5
10000000 loops, best of 3: 152 ns per loop

Not that it matters a lot, but it's weird to use an array for the shape tuple.

[larsoner]

Fine by me @pv... might as well speed up while fixing a minor bug. Latest commit adds this.

[coveralls]

Coverage remained the same when pulling 1f449dd on Eric89GXL:signaltools-int-fix into 7479249 on scipy:master.

[coveralls]

Coverage remained the same when pulling 1f449dd on Eric89GXL:signaltools-int-fix into 7479249 on scipy:master.

[rgommers]

Thanks @Eric89GXL, merged.