Add support for Elixir.

sources_non_forked/vim-elixir/indent/elixir.vim

@@ -0,0 +1,15 @@
+if exists("b:did_indent")
+  finish
+end
+let b:did_indent = 1
+
+setlocal indentexpr=elixir#indent(v:lnum)
+
+setlocal indentkeys+==after,=catch,=do,=else,=end,=rescue,
+setlocal indentkeys+=*<Return>,=->,=\|>,=<>,0},0],0),>
+
+" TODO: @jbodah 2017-02-27: all operators should cause reindent when typed
+
+function! elixir#indent(lnum)
+  return elixir#indent#indent(a:lnum)
+endfunction