Use ctest and install examples

[kensington]

1. Use ctest instead of a custom target
2. Install examples if they are built

[lalinsky]

I don't think these should be installed.

[kensington]

I note that this would only be called if BUILD_EXAMPLES is enabled.

How do you feel about an INSTALL_EXAMPLES target instead?

[lalinsky]

And I have a few questions, I'm using make test to run the tests, but:

• If a test fails, I don't see which test failed. Is there a way to display the stdout/stderr from the test runner?
• It seems that make test doesn't depend on the test runner target, so that if I change the tests and run make test, it will not rebuild the sources. Is that expected?

[kensington]

Thanks for the review.

The behaviour you have described is either a feature of a bug of ctest, depending on who you talk to. I have updated the pull request to restore the old check target with verbose output, while still making use of ctest.