Better errors!

Snow140 and I have been hard at work fixing bugs. I have made an advancement in how the code gives errors; it will now tell the line number of the error. The interpreter is also slightly more detailed in the error description. every time you create an output or use .text, you will get unnecessary errors in the console.  Me and Snow140 are trying to fix this, in hopes of an input box for the future. you can expect an upload in a few hours.