fixes for 0.7

[rened]

tests pass on 0.6 and 0.7 without warnings

[codecov-io]

Codecov Report

Merging #18 into master will increase coverage by 31.03%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##           master    #18       +/-   ##
=========================================
+ Coverage   68.96%   100%   +31.03%     
=========================================
  Files           1      1               
  Lines          29     20        -9     
=========================================
  Hits           20     20               
+ Misses          9      0        -9

Impacted Files	Coverage Δ
src/MappedArrays.jl	100% <100%> (+31.03%)	⬆️

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[timholy]

Thanks for this! Sorry I didn't see this when it was timely.

Back when you submitted this and 0.7 was distant, maintaining compatibility with 0.6 was the right strategy. Now that 0.7 is in beta release, I am not trying to be compatible with older Julia releases. 0.7 will be the same as 1.0, minus deprecations, so we'd have to strip out all the Compat code anyway. I merged #20. If you want to add the Project.toml as a separate PR, please do, although https://discourse.julialang.org/t/pkg3-plan-and-status/9763 suggests there will be an automatic migration at some point.

Again, sincere apologies for not having seen this when it might have been the right thing to do.

[rened]

No worries at all ;-)