Use Appveyor to test examples

[Manouchehri]

Ideally after I/we fix up the Windows build, we should be running the same tests as #51 but with Appveyor.

our goal is to get travis running on all the angr components, then use appveyor for Windows if we ever get a good windows release going

• @zardus

[zardus]

@rhelmot has quickly become the distribution and testing master, including on Windows. We bow to his wisdom.

[rhelmot]

In all fairness, I have ALWAYS been the testing master, just the distribution and windows parts are new.

[zardus]

rhelmot has now done this :-)

[rhelmot]

so uh, technically we never test the docs in appveyor, since so much of that code is linux-specific, but yes, we do run angr/simuvex/claripy/cle tests on appveyor now

[zardus]

Good point. I think it's probably "good enough" already.