Towards Julia v1.0

[navidcy]

Implements changes to comply with deprecations or change of syntax in julia v0.7.

@glwagner: I suggest we make all code compatible with v0.7 and then we split the physics modules from the main FourierFlows.jl code.

[coveralls]

Coverage increased (+22.3%) to 99.164% when pulling 2f5fb0d on TowardsJulia1.0 into c6ab17a on master.

[codecov]

Codecov Report

Merging #81 into master will increase coverage by 22.25%.
The diff coverage is 100%.

@@             Coverage Diff             @@
##           master      #81       +/-   ##
===========================================
+ Coverage   76.91%   99.16%   +22.25%     
===========================================
  Files          16       12        -4     
  Lines        1360      598      -762     
===========================================
- Hits         1046      593      -453     
+ Misses        314        5      -309

Impacted Files	Coverage Δ
src/problemstate.jl	100% <ø> (ø)	⬆️
src/FourierFlows.jl	100% <ø> (ø)	⬆️
src/physics/verticallycosineboussinesq.jl	93.54% <100%> (+34.36%)	⬆️
src/physics/twodturb.jl	100% <100%> (+15.73%)	⬆️
src/physics/verticallyfourierboussinesq.jl	100% <100%> (+44.87%)	⬆️
src/diagnostics.jl	100% <100%> (ø)	⬆️
src/physics/traceradvdiff.jl	100% <100%> (ø)	⬆️
src/physics/kuramotosivashinsky.jl	100% <100%> (ø)	⬆️
src/utils.jl	98.68% <100%> (-0.26%)	⬇️
src/domains.jl	100% <100%> (+2.53%)	⬆️
... and 15 more

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[navidcy]

There is a puzzling increase in coverage. Without changing essentially anything from v0.6 to v0.u we get ~22% in coverage. Seems like coverage.jl does not seem to be counting some big fraction of src code lines. Anybody from Coverage.jl perhaps can suggest what might be happening here? @IainNZ?

[IainNZ]

The actual coverage numbers are generated by Julia itself - Coverage.jl just sends them to a service. I think there may be coverage issues in Julia 0.7 from what I've seen on slack.

[glwagner]

Some wrinkles to figure out with requirements (specifically FFTW and JLD2), but otherwise looks good.