Changes for GHC 7.10

[Warbo]

Changes include:

• Bumped the SYB dependency (no noticable effect)
• ClassP is missing from template-haskell 2.10, so use AppT instead
• Take kinded type variables into account, since derived instances in the test suite weren't including variables (e.g. instance Serial Foo rather than instance (Serial a) => Serial (Foo a))
• Include plausible-looking Applicative and Functor instances, to obey new superclass constraints
• Annotate a test as using lists, to avoid ambiguity now that fold functions are more generic (foldable/traversible)

Note: I have not tested this on other GHC versions.

[jasonreich]

Sounds good.

Travis CI build failed because it is pinned to 7.8. Could you please update .travis.yml as part of your pull request.

Thanks.

[Warbo]

Finally got the build to pass. Since the changes work around different template haskell types, I've used CPP to switch between them. Checking the template-haskell version in CPP seems to cause a syntax error with GCC's preprocessor, so I've made it check GHC's version instead.

I've kept Travis testing with 7.8, since it doesn't seem to have 7.10 available. I've tested this myself on NixOS using GHC 7.10 and 7.8.4.