efl: distcheck will run tests and compile all examples.

efl: distcheck will run tests and compile all examples.

Tests are disabled by default, but they should be mandatory for
distcheck. So should be examples, we should have them to at least
compile.

As there is no way to force "make distcheck" to run "make examples",
I've created --enable-always-build-examples to make examples regular
noinst_PROGRAMS, being always compiled. distcheck will use that
option.

SVN revision: 82276