Update to Guava 17, add now-separate JSR305 dependency (use Glowkit#guava17)
Update to Guava 17, add now-separate JSR305 dependency (use Glowkit#guava17)

Spigot-Bukkit requires Guava 17, but Glowkit had Guava 10.

As part of the Guava update, JSR305 is no longer bundled, so it is also
added in order to allow using Glowstone's "import javax.annotation.Nullable;"
see: http://stackoverflow.com/questions/3800033/guava-r07-gwt-and-javax-annotation-nullable

Conflicts:
	pom.xml

GreenBeard/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,keke142/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,GlowstonePlusPlus/GlowstonePlusPlus,GlowstoneMC/GlowstonePlusPlus,keke142/GlowstonePlusPlus,GreenBeard/GlowstonePlusPlus,BlazePowered/Blaze-Server,BlazePowered/Blaze-Server,GreenBeard/GlowstonePlusPlus,Postremus/GlowstonePlusPlus,jimmikaelkael/GlowstonePlusPlus,GlowstoneMC/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,BlazePowered/Blaze-Server,BlazePowered/Blaze-Server,Postremus/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,jimmikaelkael/GlowstonePlusPlus,Postremus/GlowstonePlusPlus,GlowstonePlusPlus/GlowstonePlusPlus,keke142/GlowstonePlusPlus,GlowstoneMC/GlowstonePlusPlus,jimmikaelkael/GlowstonePlusPlus,keke142/GlowstonePlusPlus,GlowstonePlusPlus/GlowstonePlusPlus,jimmikaelkael/GlowstonePlusPlus,Postremus/GlowstonePlusPlus,GreenBeard/GlowstonePlusPlus,GlowstoneMC/GlowstonePlusPlus,GlowstonePlusPlus/GlowstonePlusPlus