* [AI] Be smarter when shooting breakables.

* Should fix bug #5363 (Suicide: aliens and windows)
* Introduced pos3L_distance()
* Fixed minor bug in AIL_print()
* Let actorL_shoot() and actorL_throwgrenade() return success.
* Extended line of fire check in AIL_positionshoot()
* Forward-porting fix for bug #5365
* Introduced AIL_isfighter()
* Doxygen.
* Introduced AIL_setwaypoint()
* Updated spanish translation.
* Fix some scientist assignment issue on transfering
* Employee being transfered is not available for work yet
* Enhancement for audio options: hide other audio options if sound is disabled
* [UI2] Updated WorldLevel component;
* Updated keys.cfg;
* confunc updateLevelStatus for hud_default
* Removing not properly working line; probably will fix bug #5327
* Removing unused components
* Open scientists tab from hire/fire buttons in laboratory
* map [+industrial] updated ind_fr18_3x6.map

* changed shape of building to better break LOS
* adjusted size of containers
* map [+industrial] added actorclips in ind_fr12_3x3.map
* fixed include dir for gtest - might fix bug #5377