Try to handle exceptions at the game loop level
Added is_custom_block()
Added long description
Added class settings for text and fadeout time
Use matrix translation function
Use is_custom_block()
Removed submodules, so we can import this in Launchpad
Removed submodules

This was done so we can import the Hexahedra tree in Launchpad, and make
use of their automated build/packaging system. There are PPAs for Rhea
and Entity System Library now, so there's no big need to include them as
submodules anyway.
Make player hotbar a component
Better error checking
Better error handling
Don't set GenericName
Store phases and timestamps