Fix #79 Drop Narwhal (deprecated) support

[hsandt]

Remove all references to Narwhal and OpenJDK 6
This should also fix Travis builds

[Frotty]

hey hsandt, could you merge and release all your fixes in your fork? It seems these PRs aren't getting reviewed..

[hsandt]

Hm where to where exactly? master, or another branch you're using?
I see fix-binary-op-lost-brackets, fix-travis (here), and also fix- branches I apparently created but didn't do anything on them (like fix-unenclosed-function-calls for #62). Probably did some local things on another computer that didn't quite work, so I didn't push them and I don't even see them on my current computer.

I haven't merged fix-travis in particular as I never managed to fully fix Travis on my project, as I kept encountering incompatibilities. CI is apparently using particular flavours of JS interpreters, we could probably drop a few.

Since the "enclosed function" test failure prevented me from testing CI properly, I branched from before the commit that introduced it (see #62), and made a feature/cleanup-deps branch. There, I found an issue with phantomjs only on my custom code using new ECMAScript method String.prototype.startsWith (for convenience, substring works just as well), as it was too old (1.9). Since it's not updated anymore, I just removed it. But then I still had an issue with Ringo: https://travis-ci.org/github/hsandt/luamin/jobs/730000374
so I kinda stopped there, as I could at least run the tests locally and it was fine (with latest nodejs).

I don't know the other environments enough to tell which ones are still worth supporting (rhino, ringo) but I may just remove everything but node if it's for my own fork and I feel a bit more free.

Is this what you're aiming for? Without going before #64 you may not even have noticed these incompatibility issues though, so maybe you were rather speaking about non-Travis fixes?

[hsandt]

hey hsandt, could you merge and release all your fixes in your fork? It seems these PRs aren't getting reviewed..

OK, 2 years later, I finally made it:

• my fork's develop (default) branch: https://github.com/hsandt/luamin/tree/develop for all the fixes and crazy minification features (I use it for super compact code in PICO-8)
• the stable branch: https://github.com/hsandt/luamin/tree/stable for just the fixes and cleaning up dependencies

The issues I mentioned are still there. I just merged the fixes into stable and the fixes + features in develop. I also just added one more fix on both (Lua 5.4 operator precedence).