amend prev commit
add "make test" using the updated picotest
add travis configuration
test files should go in to ${proj}/t
do not build the unit tests with "make all"
build the examples as part of "make test" (if libuv exists)
add basic e2e tests for HTTP/1
now the test depends on h2o
[travis] install Perl modules mandatory for testing
verbose output
run the unit tests before end-to-end tests
install ab
don't run tests when install cpanm
recover the test removed in commit 5138594
run HTTP/2 (w. Upgrade) tests using nghttp2
[travis] install nghttp2
log output to stderr
install nghttp2 to /usr, so that solib can be found (at /usr/lib)
install nghttp2 (merge branch 'kazuho/expr/travis/install-nghttp2')
add HTTPS tests