Update to JuMP v0.19

[blegat]

Closes https://github.com/JuliaPolyhedra/Polyhedra.jl/pull/155

[codecov[bot]]

Codecov Report

:exclamation: No coverage uploaded for pull request base (master@fc51bb5). Click here to learn what that means. The diff coverage is 85.03%.

@@            Coverage Diff            @@
##             master     #157   +/-   ##
=========================================
  Coverage          ?   83.26%           
=========================================
  Files             ?       32           
  Lines             ?     1715           
  Branches          ?        0           
=========================================
  Hits              ?     1428           
  Misses            ?      287           
  Partials          ?        0

Impacted Files	Coverage Δ
src/Polyhedra.jl	34.78% <ø> (ø)
src/redundancy.jl	92.68% <0%> (ø)
src/jump.jl	100% <100%> (ø)
src/defaultlibrary.jl	90.24% <100%> (ø)
src/polyhedra_to_lp_bridge.jl	61.9% <61.9%> (ø)
src/opt.jl	73.46% <77.27%> (ø)
src/repelemop.jl	86.86% <78.57%> (ø)
src/lphrep.jl	88.52% <88.52%> (ø)
src/vrep_optimizer.jl	90.9% <90.9%> (ø)
src/default.jl	68.88% <91.66%> (ø)
... and 1 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update fc51bb5...294e83f. Read the comment docs.

[codecov[bot]]

Codecov Report

:exclamation: No coverage uploaded for pull request base (master@fc51bb5). Click here to learn what that means. The diff coverage is 84.82%.

@@            Coverage Diff            @@
##             master     #157   +/-   ##
=========================================
  Coverage          ?   83.32%           
=========================================
  Files             ?       32           
  Lines             ?     1715           
  Branches          ?        0           
=========================================
  Hits              ?     1429           
  Misses            ?      286           
  Partials          ?        0

Impacted Files	Coverage Δ
src/Polyhedra.jl	34.78% <ø> (ø)
src/redundancy.jl	92.68% <0%> (ø)
src/jump.jl	100% <100%> (ø)
src/dimension.jl	81.25% <100%> (ø)
src/defaultlibrary.jl	90.24% <100%> (ø)
src/polyhedra_to_lp_bridge.jl	61.9% <61.9%> (ø)
src/opt.jl	73.46% <77.27%> (ø)
src/repelemop.jl	86.86% <78.57%> (ø)
src/default.jl	68.88% <85.71%> (ø)
src/lphrep.jl	88.52% <88.52%> (ø)
... and 2 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update fc51bb5...f73583b. Read the comment docs.

[joehuchette]

Awesome!