Migrated sulfur and saltpeter to the new powder item.
Fixed mold gui giving back unfired clay mold. Resolves #162
Fix getDayOfYearFromTick not giving the correct day after 1 year of world life.
Fix getTempSpecificDay, days has to be in 0-95 range not 1-96.

This then fixes a crash happening in getMonthTempFactor due to the days > 95 and so the current month > 11 and fixes an "old" bug that returns wrong temp factor per month after 1 year of world life.
Remove vanilla recipe for minecart with chest.
Closes #135
Made ItemTerra more generic
Fixed several issues with clay and powder
Removed axe plank making.
Merge branch 'master' of github.com:Deadrik/TFCraft
Quern recipes added for making kaolinite powder and graphite powder
Fixed the ClayMoldAxe recipe. Apparently CraftingManager gets confused if
one recipe line is shorter than the others.
Added missing charcoal texture
Merge https://github.com/Deadrik/TFCraft
Now possible to get straw by cutting tall grass with a knife.
Straw can now be harvested from tall grass in an Area using the scythe.
Merge pull request #166 from mayaknife/master

Fixed the ClayMoldAxe recipe.
Fix wrong color of tree flowers or fruits on the top face.
Add RenderBlockWithCustomColorMultiplier function to render the block with standard render functions but passing the color multiplier with the arguments instead of taking it from the block rendered.
Clean unneeded code.

Closes #60