Alchemist v1.8.2

Enhancements

• [Mix] Add support for mix test --stale
• [Mix] Allow customization of truncate-lines in test report mode
• [IEx] Add function to compile buffer in iex and go
• [Server] Update Alchemist-Server (Elixir 1.4.2)

Bug fixes

• [Mix] Fix alchemist-test-{next,previous}-result in test report
• [Goto] Fix issue about jumping to core elixir files
• [IEx] Add alchemist-backend through iex hook
• [Completion] Add alchemist-company backend correctly
• [Completion] Fixing weird behaviour of adding completion prefix
• [Completion] Fix literal TAB binding to company-complete