Remove docstring warnings

This will make tests much nicer.

Add jump problems

Merge pull request #24 from isaacsas/diffusion-jump-ex

add diffusion by CTRW example

Add jump problems

Merge pull request #22 from YingboMa/myb/fix

Fix analytical solutions in BigFloat

Remove precompilation

v2.2.0

disable precompilation due to new SymEngine

Tons of new problems.

v2.1.0

Add non-diagonal SDE problems

DDE parameters in history function

Merge pull request #14 from devmotion/history_params

Add parameters to history function

Syntax change

v1.0.0

Update REQUIRE

Add a bunch of DDE examples

Merge pull request #13 from devmotion/more_dde_problems

Improve and add DDE problems

DDEProblem

v0.10.0

Update REQUIRE

Get rid of explicit iip

This is required for tests to pass on future versions, and was unnecessary.