Updated to development version 0.2.0

Next iteration (0.2.0) of the dev version with some major enhancements

Finally got around to implement the pre-processing stage into the compiler which adds the following improvements:

• Auto numbering: you don't need to use line numbers anymore (if you don't want to). 
• Import of source libraries: no more endless copying over of the same utility code. 
• Free form (sort of) source code: insert empty spacer lines, comments without REM etc. to make your code more readable
• Labels can finally be targets for all types of jumps (gosub, goto, if then)

For an example of all of the above please have a look at the updated sprites.bas program included with the distribution.