Version 0.1

Original test version.

Version 0.2

Lights are created wherever the player walks when the command is enabled.

Version 0.3

Lights are deleted behind the player.

Version 0.4

Significantly smoother lighting and no longer deletes rail, grass, flowers, etc.
Fixed mob models missing parts.

Version 0.5

Light blocks are left behind less frequently in exchange for slightly rougher lighting.
Fixed Login error.
Fixed server reload error.
Light is created at first use of the command rather than first movement after activation.
Light is removed after disable.
Cleaned Code
Beta Release.

Version 0.6

Save activation state upon log out and server restart or reload via configuration file.
Light no longer gets created in water. Helped fix bugs with water.
Start of editable configurations. 
Light is no longer stuck on server reload.