Make things work with julia 0.4

[davidanthoff]

No description provided.

[davidanthoff]

@mbauman mentioned that the changes in JuliaLang/julia#10525 break ExcelReaders (he mentioned that here).

Once we look at 0.4 compatibility we should address that.

@mbauman, just to clarify, are you sure that commit surfaced a new problem in ExcelReaders? ExcelReaders at no point worked with 0.4, so maybe you just saw a test failure that was there before already? I will look at 0.4 compatibility once there is a feature freeze for 0.4.

[mbauman]

Ah, no, I'm not. I made a quick assessment based on the day it failed and the error message backtrace. But looking through the code now I don't see any reason why that would have caused it.

[mbauman]

Ah, yeah, looks like you got hit by a cascading failure from JuliaStats/DataArrays.jl#152. The backtraces from DataArrays are particularly bad due to the compat macros. Sorry for the false alarm!

[davidanthoff]

Thanks!