Add go 1.9 to Travis build matrix.

Fix readline-binding.

Remove embedded: from embedded namespace. Remove "acme:".

eval: In gen-embedded-module, handle backtick correctly.

Simplify compileFn with argsWalker.

Let edit.completion embed edit.compl.

Add $le:after-readline.

Makefile: Use "=" in call to test.

Expose selected file in nav mode as $le:selected-file.

This fixes elves#96.

Allow omitting component of list slice index.