Add reset!() method.
Remove settune!() method.
Move code for tune() method.
Fix sigma overwrites and updates.
Call reset!() from setinits!().
Require the tune dictionary field in Sampler type to be {String,Any}.
Update documentation version to 0.3.2.
Note pmap-related fix.
Replace deepcopy() with copy() where appropriate.
Implement "sampler" tuning parameter to standardize with other Samplers.
Update references.
Update headers.
Upgrade to compatible Gadfly and StatsBase versions.
Add description of the target package users.
Add detail about the link-transformation for matrix distributions.