Unity 5.5.03f and Vuforia 6.2 Warnings while importing Package

I use Windows 8.1 on 64 bit. while importing Importing Vuforia 6.2.6 into Unity 5.5.0f3 I errors as;

Assembly: 'Assets/Vuforia/Editor/Scripts/Vuforia.UnityExtensions.Editor.dll' uses obsolete Unity API (UnityUpgradable)

There are inconsistent line endings in the 'Assets/Vuforia/Scripts/Internal/AndroidUnityPlayer.cs' script. Some are Mac OS X (UNIX) and some are Windows.

This might lead to incorrect line numbers in stacktraces and compiler errors. Many text editors can fix this using Convert Line Endings menu commands.

OnLevelWasLoaded was found on VuforiaAbstractBehaviour

This message has been deprecated and will be removed in a later version of Unity.

Add a delegate to SceneManager.sceneLoaded instead to get notifications after scene loading has completed

Assets/Vuforia/Scripts/Utilities/VRIntegrationHelper.cs(99,29): warning CS0618: UnityEngine.Camera.SetStereoProjectionMatrices(UnityEngine.Matrix4x4, UnityEngine.Matrix4x4)' is obsolete: SetStereoProjectionMatrices is deprecated. Use SetStereoProjectionMatrix(StereoscopicEye eye) instead.'

OnLevelWasLoaded was found on VuforiaAbstractBehaviour

This message has been deprecated and will be removed in a later version of Unity.

Add a delegate to SceneManager.sceneLoaded instead to get notifications after scene loading has completed

Please help me in this issue.