maint: remove trailing whitespace.

* lib/zemacs/specs/spec_helper.lua: Remove trailing whitespace.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>
maint: fix parallel make again.

Make -j3 now works again.
* local.mk (doc/.ldocs): Don't depend on $(srcdir)/doc, creation
of which is already handled by this rule anyway.
* THANKS: Add Stefan Hussman.
Reported by Stefan Hussman

Signed-off-by: Gary V. Vaughan <gary@gnu.org>
specs: revert accidental removal of Array_spec.yaml.

* lib/zile/specs/Array_spec.yaml: Reinstate from 996e6e0.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>
slingshot: sync with upstream for upload and moonscript support.

* slingshot: Sync with upstream.
* .travis.yml: Manually merge improvements from slingshot.
* bootstrap: Update from slingshot.
* bootstrap.conf (slingshot_files): Delete removed
ax_compare_version.m4.
* m4/ax_compare_version.m4: New checked in copy, because Zile
configury uses it to check that installed Emacs is new enough.
* .gitignore: Update.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>
zile:fix bundle loading if zile is installed in .luarocks.

* lib/zile/bundle.lua (package.loaders): Change regex to match .lua
on EOL. This allows zile to be installed under $HOME/.luarocks or
any directory that has ".lua" in its name.