Merge pull request SciML#8 from tkf/DynamicSS-tspan

Add tspan option to DynamicSS

Update appveyor.yml

Merge remote-tracking branch 'origin/master'

fix DynamicSS

Merge pull request SciML#7 from JuliaDiffEq/07

update to v0.7

Update REQUIRE

Merge branch 'dynamic'

update require to new syntax

Update SteadyStateDiffEq.jl

Update REQUIRE