Documentation Update

JOSS Paper

See github.com/YoungFaithful/CapacityExpansion.jl/releases/tag/v0.2.0…

… for release notes

See github.com/YoungFaithful/CapacityExpansion.jl/releases/tag/v0.1.5…

… for release notes

See https://github.com/YoungFaithful/CapacityExpansion.jl/releases/ta…

…g/v0.1.4 for patch notes

Merge pull request #11 from YoungFaithful/Float64

Float64 bugfix -- AbstractFloat has too much memory usage

Merge pull request #10 from YoungFaithful/32bit

32bit ready

@JuliaRegistrator register()

Merge pull request #7 from YoungFaithful/dev

Renaming CEP to CapacityExpansion

Merge pull request #2 from YoungFaithful/dev

Logo updated