Initial bits of gyp build.
Convert to a gyp-based build.
Add Node 0.10 to the travis build.
Clean the embedded libzip version on "make clean".
Fix package.json to use the Makefile.
Tweak CFLAGS.
Add -lz.
Add -lm.
Attempt to fix gyp build.
Remove flags that don't work anyway.
More flag tweaking.
Allow running on Node 0.10/11.
Remove Travis, it doesn't work.
Merge branch 'gyp-build'