Backported to 1.6.4
Added Russian translation (courtsey of merkaba5)
Version 2.0 release date: 03/06/14
Fixed entities not spawning (hopefully)
Removed update checker that caused above problem
Added animated textures for the light blocks. Configurable to turn on/off
Changed Gravity Lift GUI
Fixed Gravity Lift GUI height text box showing a weird number
Light devices properly activate adjacent light devices, provided they are the same light device, and same direction.
Gravity lift saves set height correctly
Improved and reduced code overall
And much more!
Fixed Grav lift gui not showing up - Oops!
Each light machine has its own length limit, in the config file
Changed the max length of the light rail from 100 to 50, and its default length is 25
Light blocks are now explosion resistant - Oops!
Light sources are now non-solid blocks (player cannot collide with them)
Adjacent light sources now activate if another one next to it is activated - no more complicated redstone circuits (excluding light bridges due to an unknown bug)
Re-wrote the update checker code.
Gave the mod wiki website an update/overhaul (internally)
New configurable option which decides whether one signal activates a whole light bridge, just incase the current system has some bugs (had to write it fast).
Added extra languages (Chinese and Danish)
Light paths can go through all types of glass.
Updated to MC 1.7.2
Refactored some code
Fixed light rails changing direction when power was cut off
Changed the step sound of the deactivated light rail to make it more 'raily'
Added light barriers, they extend horizontally from blocks and form a wall of light
Fixed custom heights not saving for gravity lifts. Works only clientside as of now.
An added GUI to the gravity lift to set custom heights
A very cool new type of light bridge - Light rail. On activated, extends a block that acts like rails! - Idea provided by jimzks
Changed the particles of the gravity lift to look way more 'gravity defying'
A much better system for packet handling, and nbt storing - thanks to hydroflame and MineMarteen on the Minecraft forge forums for all of their help with this feature