Add option to hide compilation buffer if all tests pass

[mallt]

This PR adds an option that will hide the compilation buffer if all tests pass and show the test result summary and time passed in the echo area:

Thanks!

[zonuexe]

message is similar to C's printf.

(message "%s %s" ok-msg time-msg)

[zonuexe]

@mallt
Nice work!

I have some points to review, so please wait a while.
And please forgive me for conflicting with #48 🙇

[mallt]

Thanks @zonuexe!
No problem, I will merge the changes of #48 then after it is finished and resubmit this PR.

[zonuexe]

Maybe, follows test will be success always.

<?php

final class OKTest extends \PHPUnit_Framework_TestCase
{
    public function test()
    {
        $this->assertSame(1, 2, "OK");
    }
}

-*- mode: compilation; default-directory: "~/repo/php/TetoSQL/" -*-
Compilation started at Fri Mar 10 18:54:46

stty cols 182; ~/repo/php/TetoSQL/vendor/bin/phpunit tests/OKTest.php
PHPUnit 4.8.35 by Sebastian Bergmann and contributors.
Warning:	No whitelist configured for code coverage

F

Time: 1.14 seconds, Memory: 6.00MB

There was 1 failure:

1) QueryTest::test
OK
Failed asserting that 2 is identical to 1.

/Users/megurine/repo/php/TetoSQL/tests/OKTest.php:7

FAILURES!
Tests: 1, Assertions: 1, Failures: 1.

Compilation exited abnormally with code 1 at Fri Mar 10 18:54:48

[mallt]

Yes good point, I will try to make the check a bit more intelligent, thanks!

[zonuexe]

if-let and when-let are added in Emacs 25. Perhaps we should continue to support Emacs 24.3 for a while.

[zonuexe]

@mallt
Sorry to make you wait. Please git rebase origin/develop.

[mallt]

@zonuexe Thanks a lot for the comments, and sorry for the delay! I hope to update this PR soon.

[nlamirault]

Sorry for delay.

[mallt]

Thanks!

[zonuexe]

@mallt Sorry to miss it, thank you!