Fix OSX building and implement Travis.

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Автор: Lillecarl


<pre style='white-space:pre-wrap;width:81ex'>Fix OSX building and implement Travis.

Default Mac OpenSSL directory to home-brew installation path if nothing else is specified. (+9 squashed commits)
Squashed commits:
[6d2ce1c] Update CMakeLists.txt
[263d9ba] Update loadlib.h

Copied from CMaNGOS defs
[eb0b9f9] Update loadlib.h
[1f510c7] Update loadlib.h
[2461169] Update .travis.yml
[ecc939d] Update .travis.yml
[b88d7b1] Update .travis.yml
[3cd9472] Update .travis.yml
[3f0b716] Update .travis.yml
[ff219c0] Update .travis.yml</pre>


Подробнее... (https://github.com/cmangos/mangos-wotlk/commit/662bccb6d5278eaf3d7e9ef5aebd84af443869ef)