Fixed them again, confound it
Daylight sensors
Implemented fall particles
Added many event catchers

* Window close
* CTRL-C
* etc.
Implemented knockback and critical hit
A fix for daylight sensors
Daylight sensor sensing enhancement
Added some comments in main.cpp
Fixed a comment in Entity.cpp
Clarified some code in Player.cpp
Provides an enhancement to daylight sensors
Improved player fall particle positions
Improved knockback animation

* Critical hits now actually increase damage
* Looking down at an entity and hitting them still produces upwards
motion (as per Vanilla experience)
* Reduced force to be more realistic
Implemented stone and wooden pressure plates
Fixed comments in main.cpp and Player.cpp
Used IsGamemodeCreative() function
Braced up some code
Fixed rails not updating with diagonals
Moved increment operator to back of variables
Merge pull request #461 from mc-server/repeaters

Repeaters, pressure plates, and others