Rename ifelse to select.

[GunnarFarneback]

This attempts to solve #28 by renaming ifelse to select. Note that Base.select is deprecated for Julia 0.7 and expected to be removed for 1.0.

[eschnett]

I noticed that select in OpenCL takes the arguments in reverse order: ifelse(a,b,c) corresponds to select(c,b,a). I've thus experimented with a new function vifelse since I didn't have any better idea.

Do you think the difference in argument order is confusing?

[GunnarFarneback]

No opinion really about name or argument order. I've never used select in OpenCL, nor ifelse in SIMD.jl. All I want is to get the package working on 0.7 so I can run my code there. :-)

[eschnett]

Well, since you did the work, let's go with select then.

Do you know why Travis fails on the nightly build? That's a weird error message (and doesn't seem related to this issue here, so we can also ignore it.)

[GunnarFarneback]

No idea about what's up with Travis. If I run the same commands on my Linux computer (with a marginally newer Julia) it passes.

[codecov-io]

Codecov Report

Merging #29 into master will increase coverage by 0.61%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #29      +/-   ##
==========================================
+ Coverage   90.19%   90.81%   +0.61%     
==========================================
  Files           1        1              
  Lines         663      664       +1     
==========================================
+ Hits          598      603       +5     
+ Misses         65       61       -4

Impacted Files	Coverage Δ
src/SIMD.jl	90.81% <100%> (+0.61%)	⬆️

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[GunnarFarneback]

Note, the Julia 1.0 forward compatibility is incomplete; there are additional Base.select definitions later in the code.

[eschnett]

I have pushed the other branch instead which uses vifelse as new name.