Do not fill in stacktraces on protocol dispatch
`Exception.normalize/1` is deprecated in favor of `Exception.normalize/2`
Add `handle_body/1` callback to EEx.Engine
Merge pull request #2155 from ericmj/eex-handle-body

Add `handle_body/1` callback to EEx.Engine
Document `--no-deps` on 'mix compile'
Document --no-deps-check rather than --no-deps