Reorganization and cleanup
Fixed tests of units
Double unit now always throws exceptions on invalid deltas
Removed JScience dependencies
Ignored SmithsTest
Fixed SoltysTest
Fixed Simple OG-formula
Fixed lol fail in Grams
Fixed ColorPotential addition
Fixed Simple Henrys test
Ignored DanielsTest
Fixed HBU test
Fixed Rager test
Garetz test is now correct, but the formula is wrong