Updated EvalEx: Added IF function and TRUE/FALSE constants
Fixed Natura food values showing the incorrect values
Add FoodStats hook before the first instruction no matter what type it is
Added food exhaustion HUD overlay + other stuff
 * Food exhaustion only works when the server has the mod (Minecraft doesn't sync it)
 * Fixed saturation packets being sent all the time instead of just when it changes
 * Fixed various compile warnings
Made EvalEx a git submodule, updated build.gradle accordingly
Merge branch 'master' of https://github.com/squeek502/SpiceOfLife into 1.7

Conflicts:
	java/squeek/spiceoflife/ModSpiceOfLife.java
	java/squeek/spiceoflife/foodtracker/FoodTracker.java
	java/squeek/spiceoflife/gui/HUDOverlayHandler.java
	java/squeek/spiceoflife/gui/TooltipOverlayHandler.java
	java/squeek/spiceoflife/proxy/ProxyHungerOverhaul.java