Handle markdown escapes in ANSIDocs, closes #1757
Do not start and configure IEx all the time
Improve IEx docs, mention remsh, unify options handling
Move all IEx config handling to IEx.Server
Implement IEx.History.reset
Clarify the docstring for `IEx.History.nth`
Add a test for IEx.History.reset
Merge pull request #1759 from alco/iex-history-reset

Iex history reset
Do not store the whole config in IEx.History
Append archives/paths before executing any task

Closes #1760
Store key-values in @protocol and @impl