Update to AbstractMCMC 0.4

Author: devmotion

Project.toml

@@ -10,23 +10,10 @@ Distributions = "31c24e10-a181-5473-b8eb-7969acd0382f"
 MacroTools = "1914dd2f-81c6-5fcd-8719-6d5c9610ff09"
 
 [compat]
-AbstractMCMC = "0.3"
-AdvancedHMC = "0.2.20"
+AbstractMCMC = "0.4"
 Bijectors = "0.5.2"
 Distributions = "0.22"
-DistributionsAD = "0.2"
-ForwardDiff = "0.10.3"
-Libtask = "0.3.1"
-LogDensityProblems = "^0.9, 0.10"
-MCMCChains = "~0.4.0, 1.0"
 MacroTools = "0.5.1"
-PDMats = "0.9.9"
-ProgressMeter = "1.0.0"
-Reexport = "0.2.0"
-Requires = "1.0"
-SpecialFunctions = "0.7.2, 0.8, 0.9"
-StatsFuns = "0.8, 0.9"
-Tracker = "0.2.3"
 julia = "1"
 
 [extras]