Allow to override test suite configuration

[remicollet]

This seems more flexible for people wanting to test

[aklomp]

Hi Remi, just for your information, I will change the license of this repo to the BSD 2-clause license later today (see issue #15). So if we pull this request, it will fall under the new license. Is that okay with you?

[remicollet]

@aklomp yes BSD is fine for me (even if PHP License is fine, ok not perfect for non PHP project, but debian is wrong on this ;)

[remicollet]

I definitively don't understand why travis fails... it works locally.

$ php -d extension=modules/libsmbclient.so /usr/local/bin/phpunit.phar -c tests/phpunit.xml -v
PHPUnit 4.8.6 by Sebastian Bergmann and contributors.
Runtime:    PHP 5.6.12
Configuration:  /work/GIT/libsmbclient-php/tests/phpunit.xml
.............................................
Time: 366 ms, Memory: 15,75Mb
OK (45 tests, 145 assertions)

[aklomp]

This pull request looks sensible. I'm willing to merge it, as long as the Travis build passes and if you squash some of the fixup commits :)

[aklomp]

With the Travis error, it looks like one or both of the SMB_ constants is empty. It's strange because the code looks fine...

[aklomp]

Maybe try replacing the concatenation in LSeekTest.php with

sprintf("smb://%s/%s/lseektest.txt", SMB_HOST, SMB_SHARE);

[remicollet]

Got it \o/

[aklomp]

Woah :) OK, I'll look into this pull request late this evening. Could you please quash your commits into a nice and small patchset?