Fixed NPE and improved overall class.

[JakeGBLP]

Fixed NullPointerException in ExprYawPitch when resetting the value, improved code structure to use "newer" java features, removed redundant version check.

If unrelated commits are shown in this pr that means I did something wrong and I don't know how to fix it.

Problem

Resetting yaw or pitch causes a NullPointerException

Solution

Null check

Testing Completed

test "yaw and pitch":	set {_test} to test-location	assert yaw of {_test} is 0 with "The yaw of the spawn location was not 0"	set yaw of {_test} to 90	assert yaw of {_test} is 90 with "The yaw of the spawn location was not set to 90"	reset yaw of {_test}	assert yaw of {_test} is 0 with "The yaw of the spawn location was not reset to 0" 

Supporting Information

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Completes: none
Related: none

[sovdeeth]

You made this from a branch that wasn't clean. Make a new branch based off dev/patch and make changes there

[JakeGBLP]

You made this from a branch that wasn't clean. Make a new branch based off dev/patch and make changes there

Due to IRL reasons I won't be able to continue working on this, I apologize for the inconvenience and hope this goes well.

[cheeezburga]

Apologies, just saw recent comment. Hope all is well.