Fix(Scripts/Instances/Oculus): improvements (#1498)

* I removed the blank
* I made some changes to correct Travis's error.
* Update oculus.cpp
* Removed the unused method parameter
Renamed Unit::SetSpeed to SetSpeedRate
* added an improvement
* Correct Drakes flight error
* duplicate removed
* Travis Error Fixing

data/sql/updates/pending_db_world/rev_1550579754213080400.sql

@@ -0,0 +1,13 @@
+INSERT INTO `version_db_world` (`sql_rev`) VALUES ('1550579754213080400');
+UPDATE `creature_template` SET `speed_walk` = 1.20000004768372, `speed_run` = 1 WHERE `entry` IN (27755, 27756, 27692);
+UPDATE `creature_template` SET `ScriptName` = 'npc_centrifuge_construct' WHERE `entry` = 27641;
+
+-- Spells of the dragons
+DELETE FROM `spell_script_names` WHERE spell_id IN (50241, 50325, 49460, 49464, 49346, 53797);
+INSERT INTO `spell_script_names` VALUES
+(50241, 'spell_oculus_evasive_charges'),
+(50325, 'spell_oculus_soar'),
+(49460, 'spell_oculus_rider_aura'),
+(49464, 'spell_oculus_rider_aura'),
+(49346, 'spell_oculus_rider_aura'),
+(53797, 'spell_oculus_drake_flag');