Enable Windows CI

[ianfixes]

Highlights from CHANGELOG.md

• See CHANGELOG.md for more

Issues Fixed

• Fixes Add Windows & Appveyor CI support #32
• Fixes Gemfile.lock files in SampleProjects directories aren't being ignored by git #41
• Fixes Suppress CLIXML output on Appveyor #45

[ianfixes]

Punting #45 to future work

[ianfixes]

@tomduff if you do any future work on this branch, don't worry about rubocop errors! I can tend to those for you.

[tomduff]

Issue #48 was inspired by my looking at the odd compilation error in wstring.cpp.

I discovered the following which might be useful:

 // Works just fine
 long v = -2147483648L;
 assertEqual(-2147483648L, v);
 assertEqual("-2147483648", String(v));
 assertEqual("-2147483648", String((long)-2147483648L));
 assertEqual("-2147483647", String(-2147483647L));

 // Fails as expected since this blows out the long
 // v = -2147483649L;
 // assertEqual(-2147483649L, v);

 // Fails - not sure why ????
 // assertEqual("-2147483648", String(-2147483648L));

[ianfixes]

Thanks for your help on this @tomduff !

[tomduff]

@ianfixes No problem, glad I could assist.

Does the merge down to master mean a new version of the Gem will be published?

[ianfixes]

Soon. I have a few stray things to clean up that are going in #50 but after that I'll roll it out.

[ianfixes]

If you hadn't already seen it, v0.1.10 is out with these fixes