Made term_scale_text show warning if numeric literal argument is out of range.
Fixed bug with ExpStmtBlocks.
Improved error reporting when adding new blocks.
Adds the easier of the textutils blocks.
Modified Blockly.Block.interpolateMsg() to support drop-down menu inputs.
Created new class Blockly.ComputerCraft.BlockWithDependentInput for
blocks where there is an optional value input that only appears when
an associated dropdown menu has a certain value.
Added test class.
Fixed bug in interpolateMsg.
Improved block text.
Fixed bugs and otherwise improved block types with dependent inputs.